Update z-index values in DialogWidget and OverviewView components to improve layout stacking context and ensure proper element visibility.

- Updated the routing configuration to directly reference the VocabLessonView component, enhancing code clarity and consistency in component usage.

.gitignore

@@ -5,6 +5,7 @@
 .depbe.sh
 node_modules
 node_modules/*
+**/package-lock.json
 backend/.env
 backend/images
 backend/images/*
@@ -17,3 +18,9 @@ frontend/dist
 frontend/dist/*
 frontedtree.txt
 backend/dist/
+backend/data/model-cache
+build
+build/*
+.vscode
+.vscode/*
+.clang-format

CHURCH_MODELS.md

@@ -0,0 +1,156 @@
+# Church Models - Übersicht für Daemon-Entwicklung
+
+## 1. ChurchOfficeType (falukant_type.church_office_type)
+
+**Schema:** `falukant_type`  
+**Tabelle:** `church_office_type`  
+**Zweck:** Definiert die verschiedenen Kirchenämter-Typen
+
+```javascript
+{
+  id: INTEGER (PK, auto-increment)
+  name: STRING (z.B. "pope", "cardinal", "lay-preacher")
+  seatsPerRegion: INTEGER (Anzahl verfügbarer Plätze pro Region)
+  regionType: STRING (z.B. "country", "duchy", "city")
+  hierarchyLevel: INTEGER (0-8, höhere Zahl = höhere Position)
+}
+```
+
+**Beziehungen:**
+- `hasMany` ChurchOffice (als `offices`)
+- `hasMany` ChurchApplication (als `applications`)
+- `hasMany` ChurchOfficeRequirement (als `requirements`)
+
+---
+
+## 2. ChurchOfficeRequirement (falukant_predefine.church_office_requirement)
+
+**Schema:** `falukant_predefine`  
+**Tabelle:** `church_office_requirement`  
+**Zweck:** Definiert Voraussetzungen für Kirchenämter
+
+```javascript
+{
+  id: INTEGER (PK, auto-increment)
+  officeTypeId: INTEGER (FK -> ChurchOfficeType.id)
+  prerequisiteOfficeTypeId: INTEGER (FK -> ChurchOfficeType.id, nullable)
+  minTitleLevel: INTEGER (nullable, optional)
+}
+```
+
+**Beziehungen:**
+- `belongsTo` ChurchOfficeType (als `officeType`)
+- `belongsTo` ChurchOfficeType (als `prerequisiteOfficeType`)
+
+---
+
+## 3. ChurchOffice (falukant_data.church_office)
+
+**Schema:** `falukant_data`  
+**Tabelle:** `church_office`  
+**Zweck:** Speichert tatsächlich besetzte Kirchenämter
+
+```javascript
+{
+  id: INTEGER (PK, auto-increment)
+  officeTypeId: INTEGER (FK -> ChurchOfficeType.id)
+  characterId: INTEGER (FK -> FalukantCharacter.id)
+  regionId: INTEGER (FK -> RegionData.id)
+  supervisorId: INTEGER (FK -> FalukantCharacter.id, nullable)
+  createdAt: DATE
+  updatedAt: DATE
+}
+```
+
+**Beziehungen:**
+- `belongsTo` ChurchOfficeType (als `type`)
+- `belongsTo` FalukantCharacter (als `holder`)
+- `belongsTo` FalukantCharacter (als `supervisor`)
+- `belongsTo` RegionData (als `region`)
+
+---
+
+## 4. ChurchApplication (falukant_data.church_application)
+
+**Schema:** `falukant_data`  
+**Tabelle:** `church_application`  
+**Zweck:** Speichert Bewerbungen für Kirchenämter
+
+```javascript
+{
+  id: INTEGER (PK, auto-increment)
+  officeTypeId: INTEGER (FK -> ChurchOfficeType.id)
+  characterId: INTEGER (FK -> FalukantCharacter.id)
+  regionId: INTEGER (FK -> RegionData.id)
+  supervisorId: INTEGER (FK -> FalukantCharacter.id)
+  status: ENUM('pending', 'approved', 'rejected')
+  decisionDate: DATE (nullable)
+  createdAt: DATE
+  updatedAt: DATE
+}
+```
+
+**Beziehungen:**
+- `belongsTo` ChurchOfficeType (als `officeType`)
+- `belongsTo` FalukantCharacter (als `applicant`)
+- `belongsTo` FalukantCharacter (als `supervisor`)
+- `belongsTo` RegionData (als `region`)
+
+---
+
+## Zusätzlich benötigte Models (für Daemon)
+
+### RegionData (falukant_data.region)
+- Wird für `regionId` in ChurchOffice und ChurchApplication benötigt
+- Enthält `regionType` (country, duchy, markgravate, shire, county, city)
+- Enthält `parentId` für Hierarchie
+
+### FalukantCharacter (falukant_data.character)
+- Wird für `characterId` (Inhaber/Bewerber) benötigt
+- Wird für `supervisorId` benötigt
+
+---
+
+## Wichtige Queries für Daemon
+
+### Verfügbare Positionen finden
+```sql
+SELECT cot.*, COUNT(co.id) as occupied_seats
+FROM falukant_type.church_office_type cot
+LEFT JOIN falukant_data.church_office co 
+  ON cot.id = co.office_type_id 
+  AND co.region_id = ?
+WHERE cot.region_type = ?
+GROUP BY cot.id
+HAVING COUNT(co.id) < cot.seats_per_region
+```
+
+### Supervisor finden
+```sql
+SELECT co.* 
+FROM falukant_data.church_office co
+JOIN falukant_type.church_office_type cot ON co.office_type_id = cot.id
+WHERE co.region_id = ?
+  AND cot.hierarchy_level > (
+    SELECT hierarchy_level 
+    FROM falukant_type.church_office_type 
+    WHERE id = ?
+  )
+ORDER BY cot.hierarchy_level ASC
+LIMIT 1
+```
+
+### Voraussetzungen prüfen
+```sql
+SELECT cor.*
+FROM falukant_predefine.church_office_requirement cor
+WHERE cor.office_type_id = ?
+```
+
+### Bewerbungen für Supervisor
+```sql
+SELECT ca.*
+FROM falukant_data.church_application ca
+WHERE ca.supervisor_id = ?
+  AND ca.status = 'pending'
+```

CHURCH_OFFICES.md

@@ -0,0 +1,78 @@
+# Kirchenämter - Hierarchie und Verfügbarkeit
+
+## Regionstypen
+- **country** (Land): Falukant
+- **duchy** (Herzogtum): Hessen
+- **markgravate** (Markgrafschaft): Groß-Benbach
+- **shire** (Grafschaft): Siebenbachen
+- **county** (Kreis): Bad Homburg, Maintal
+- **city** (Stadt): Frankfurt, Oberursel, Offenbach, Königstein
+
+## Kirchenämter (von höchstem zu niedrigstem Rang)
+
+| Amt | Translation Key | Hierarchie-Level | Regionstyp | Plätze pro Region | Beschreibung |
+|-----|----------------|-------------------|------------|-------------------|--------------|
+| **Papst** | `pope` | 8 | country | 1 | Höchstes Amt, nur einer im ganzen Land |
+| **Kardinal** | `cardinal` | 7 | country | 3 | Höchste Kardinäle, mehrere pro Land möglich |
+| **Erzbischof** | `archbishop` | 6 | duchy | 1 | Pro Herzogtum ein Erzbischof |
+| **Bischof** | `bishop` | 5 | markgravate | 1 | Pro Markgrafschaft ein Bischof |
+| **Erzdiakon** | `archdeacon` | 4 | shire | 1 | Pro Grafschaft ein Erzdiakon |
+| **Dekan** | `dean` | 3 | county | 1 | Pro Kreis ein Dekan |
+| **Pfarrer** | `parish-priest` | 2 | city | 1 | Pro Stadt ein Pfarrer |
+| **Dorfgeistlicher** | `village-priest` | 1 | city | 1 | Pro Stadt ein Dorfgeistlicher (Einstiegsposition) |
+| **Laienprediger** | `lay-preacher` | 0 | city | 3 | Pro Stadt mehrere Laienprediger (niedrigste Position) |
+
+## Verfügbare Positionen pro Regionstyp
+
+### country (Land: Falukant)
+- **Papst**: 1 Platz
+- **Kardinal**: 3 Plätze
+- **Gesamt**: 4 Plätze
+
+### duchy (Herzogtum: Hessen)
+- **Erzbischof**: 1 Platz
+- **Gesamt**: 1 Platz
+
+### markgravate (Markgrafschaft: Groß-Benbach)
+- **Bischof**: 1 Platz
+- **Gesamt**: 1 Platz
+
+### shire (Grafschaft: Siebenbachen)
+- **Erzdiakon**: 1 Platz
+- **Gesamt**: 1 Platz
+
+### county (Kreis: Bad Homburg, Maintal)
+- **Dekan**: 1 Platz pro Kreis
+- **Gesamt**: 1 Platz pro Kreis
+
+### city (Stadt: Frankfurt, Oberursel, Offenbach, Königstein)
+- **Pfarrer**: 1 Platz pro Stadt
+- **Dorfgeistlicher**: 1 Platz pro Stadt
+- **Laienprediger**: 3 Plätze pro Stadt
+- **Gesamt**: 5 Plätze pro Stadt
+
+## Hierarchie und Beförderungsweg
+
+1. **Laienprediger** (lay-preacher) - Einstiegsposition, keine Voraussetzung
+2. **Dorfgeistlicher** (village-priest) - Voraussetzung: Laienprediger
+3. **Pfarrer** (parish-priest) - Voraussetzung: Dorfgeistlicher
+4. **Dekan** (dean) - Voraussetzung: Pfarrer
+5. **Erzdiakon** (archdeacon) - Voraussetzung: Dekan
+6. **Bischof** (bishop) - Voraussetzung: Erzdiakon
+7. **Erzbischof** (archbishop) - Voraussetzung: Bischof
+8. **Kardinal** (cardinal) - Voraussetzung: Erzbischof
+9. **Papst** (pope) - Voraussetzung: Kardinal
+
+## Gesamtübersicht verfügbarer Positionen
+
+- **Papst**: 1 Position (Land)
+- **Kardinal**: 3 Positionen (Land)
+- **Erzbischof**: 1 Position (Herzogtum)
+- **Bischof**: 1 Position (Markgrafschaft)
+- **Erzdiakon**: 1 Position (Grafschaft)
+- **Dekan**: 2 Positionen (2 Kreise)
+- **Pfarrer**: 4 Positionen (4 Städte)
+- **Dorfgeistlicher**: 4 Positionen (4 Städte)
+- **Laienprediger**: 12 Positionen (4 Städte × 3)
+
+**Gesamt**: 30 Positionen im System

CMakeLists.txt

@@ -0,0 +1,119 @@
+cmake_minimum_required(VERSION 3.20)
+project(YourPartDaemon VERSION 1.0 LANGUAGES CXX)
+
+# C++ Standard and Compiler Settings
+set(CMAKE_CXX_STANDARD 23)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+# Use best available GCC for C++23 support (OpenSUSE Tumbleweed)
+# Try GCC 15 first (best C++23 support), then GCC 13, then system default
+find_program(GCC15_CC gcc-15)
+find_program(GCC15_CXX g++-15)
+find_program(GCC13_CC gcc-13)
+find_program(GCC13_CXX g++-13)
+
+if(GCC15_CC AND GCC15_CXX)
+    set(CMAKE_C_COMPILER ${GCC15_CC})
+    set(CMAKE_CXX_COMPILER ${GCC15_CXX})
+    message(STATUS "Using GCC 15 for best C++23 support")
+elseif(GCC13_CC AND GCC13_CXX)
+    set(CMAKE_C_COMPILER ${GCC13_CC})
+    set(CMAKE_CXX_COMPILER ${GCC13_CXX})
+    message(STATUS "Using GCC 13 for C++23 support")
+else()
+    message(STATUS "Using system default compiler")
+endif()
+# Optimize for GCC 13 with C++23
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto=auto -O3 -march=native -mtune=native")
+set(CMAKE_CXX_FLAGS_DEBUG "-O1 -g -DDEBUG")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG -march=native -mtune=native")
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
+set(CMAKE_BUILD_TYPE Release)
+
+# Include /usr/local if needed
+list(APPEND CMAKE_PREFIX_PATH /usr/local)
+
+# Find libwebsockets via pkg-config
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(LWS REQUIRED libwebsockets)
+
+# Find other dependencies
+find_package(PostgreSQL REQUIRED)
+find_package(Threads REQUIRED)
+find_package(nlohmann_json CONFIG REQUIRED)
+
+# PostgreSQL C++ libpqxx
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(LIBPQXX REQUIRED libpqxx)
+
+# Project sources and headers
+set(SOURCES
+    src/main.cpp
+    src/config.cpp
+    src/connection_pool.cpp
+    src/database.cpp
+    src/character_creation_worker.cpp
+    src/produce_worker.cpp
+    src/message_broker.cpp
+    src/websocket_server.cpp
+    src/stockagemanager.cpp
+    src/director_worker.cpp
+    src/valuerecalculationworker.cpp
+    src/usercharacterworker.cpp
+    src/houseworker.cpp
+    src/politics_worker.cpp
+)
+
+set(HEADERS
+    src/config.h
+    src/database.h
+    src/connection_pool.h
+    src/worker.h
+    src/character_creation_worker.h
+    src/produce_worker.h
+    src/message_broker.h
+    src/websocket_server.h
+    src/stockagemanager.h
+    src/director_worker.h
+    src/valuerecalculationworker.h
+    src/usercharacterworker.h
+    src/houseworker.h
+    src/politics_worker.h
+)
+
+# Define executable target
+add_executable(yourpart-daemon ${SOURCES} ${HEADERS}
+  src/utils.h src/utils.cpp
+  src/underground_worker.h src/underground_worker.cpp)
+
+# Include directories
+target_include_directories(yourpart-daemon PRIVATE
+  ${PostgreSQL_INCLUDE_DIRS}
+  ${LIBPQXX_INCLUDE_DIRS}
+  ${LWS_INCLUDE_DIRS}
+)
+
+# Find systemd
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(SYSTEMD REQUIRED libsystemd)
+
+# Link libraries
+target_link_libraries(yourpart-daemon PRIVATE
+  ${PostgreSQL_LIBRARIES}
+  Threads::Threads
+  z ssl crypto
+  ${LIBPQXX_LIBRARIES}
+  ${LWS_LIBRARIES}
+  nlohmann_json::nlohmann_json
+  ${SYSTEMD_LIBRARIES}
+)
+
+# Installation rules
+install(TARGETS yourpart-daemon DESTINATION /usr/local/bin)
+
+# Installiere Template als Referenz ZUERST (wird vom install-Skript benötigt)
+install(FILES daemon.conf DESTINATION /etc/yourpart/ RENAME daemon.conf.example)
+
+# Intelligente Konfigurationsdatei-Installation
+# Verwendet ein CMake-Skript, das nur fehlende Keys hinzufügt, ohne bestehende zu überschreiben
+# Das Skript liest das Template aus /etc/yourpart/daemon.conf.example oder dem Source-Verzeichnis
+install(SCRIPT cmake/install-config.cmake)

CMakeLists.txt.user

@@ -0,0 +1,414 @@
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+    </valuemap>
+   </valuemap>
+   <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
+    <value type="QString" key="language">QmlJS</value>
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+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Release</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeBuildConfiguration</value>
+    <value type="qlonglong" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
+    <value type="qlonglong" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+      <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Deployment</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Deployment</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
+     </valuemap>
+     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
+     <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
+     <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
+    </valuemap>
+    <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.1">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
+       <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+       <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+        <value type="QString"></value>
+       </valuelist>
+       <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+       <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ApplicationManagerPlugin.Deploy.CMakePackageStep</value>
+      </valuemap>
+      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
+       <value type="QString" key="ApplicationManagerPlugin.Deploy.InstallPackageStep.Arguments">install-package --acknowledge</value>
+       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Application Manager-Paket installieren</value>
+       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ApplicationManagerPlugin.Deploy.InstallPackageStep</value>
+       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedFiles"/>
+       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedHosts"/>
+       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedRemotePaths"/>
+       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedSysroots"/>
+       <valuelist type="QVariantList" key="RemoteLinux.LastDeployedLocalTimes"/>
+       <valuelist type="QVariantList" key="RemoteLinux.LastDeployedRemoteTimes"/>
+      </valuemap>
+      <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Deployment</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Deployment</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
+     </valuemap>
+     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
+     <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
+     <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ApplicationManagerPlugin.Deploy.Configuration</value>
+    </valuemap>
+    <value type="qlonglong" key="ProjectExplorer.Target.DeployConfigurationCount">2</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
+     <value type="bool" key="Analyzer.Perf.Settings.UseGlobalSettings">true</value>
+     <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
+     <value type="int" key="Analyzer.Valgrind.Callgrind.CostFormat">0</value>
+     <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
+     <valuelist type="QVariantList" key="CustomOutputParsers"/>
+     <value type="int" key="PE.EnvironmentAspect.Base">2</value>
+     <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
+     <value type="bool" key="PE.EnvironmentAspect.PrintOnRun">false</value>
+     <value type="QString" key="PerfRecordArgsId">-e cpu-cycles --call-graph dwarf,4096 -F 250</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">yourpart-daemon</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeRunConfiguration.</value>
+     <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey">yourpart-daemon</value>
+     <value type="bool" key="ProjectExplorer.RunConfiguration.Customized">false</value>
+     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
+     <value type="bool" key="RunConfiguration.UseLibrarySearchPath">true</value>
+     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
+     <value type="QString" key="RunConfiguration.WorkingDirectory.default">/home/torsten/Programs/yourpart-daemon/build</value>
+    </valuemap>
+    <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
+   </valuemap>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.1">
+    <value type="QString" key="CMake.Build.Type">Debug</value>
+    <value type="int" key="CMake.Configure.BaseEnvironment">2</value>
+    <value type="bool" key="CMake.Configure.ClearSystemEnvironment">false</value>
+    <valuelist type="QVariantList" key="CMake.Configure.UserEnvironmentChanges"/>
+    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
+-DCMAKE_COLOR_DIAGNOSTICS:BOOL=ON
+-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
+-DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{BuildConfig:BuildDirectory:NativeFilePath}/.qtc/package-manager/auto-setup.cmake
+-DCMAKE_PREFIX_PATH:PATH=%{Qt:QT_INSTALL_PREFIX}
+-DCMAKE_GENERATOR:STRING=Unix Makefiles
+-DCMAKE_BUILD_TYPE:STRING=Debug
+-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}</value>
+    <value type="QString" key="CMake.Source.Directory">/mnt/share/torsten/Programs/yourpart-daemon</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/torsten/Programs/yourpart-daemon/build</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
+      <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+       <value type="QString">all</value>
+      </valuelist>
+      <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
+     </valuemap>
+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Erstellen</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Erstellen</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
+    </valuemap>
+    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
+      <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+       <value type="QString">clean</value>
+      </valuelist>
+      <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
+     </valuemap>
+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Bereinigen</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Bereinigen</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
+    </valuemap>
+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
+    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Debug (importiert)</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeBuildConfiguration</value>
+    <value type="qlonglong" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
+    <value type="qlonglong" key="ProjectExplorer.Target.ActiveRunConfiguration">-1</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+      <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Deployment</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Deployment</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
+     </valuemap>
+     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
+     <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
+     <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
+    </valuemap>
+    <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.1">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
+       <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+       <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+        <value type="QString">install</value>
+       </valuelist>
+       <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+       <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ApplicationManagerPlugin.Deploy.CMakePackageStep</value>
+      </valuemap>
+      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
+       <value type="QString" key="ApplicationManagerPlugin.Deploy.InstallPackageStep.Arguments">install-package --acknowledge</value>
+       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+       <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Application Manager-Paket installieren</value>
+       <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ApplicationManagerPlugin.Deploy.InstallPackageStep</value>
+       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedFiles"/>
+       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedHosts"/>
+       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedRemotePaths"/>
+       <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedSysroots"/>
+       <valuelist type="QVariantList" key="RemoteLinux.LastDeployedLocalTimes"/>
+       <valuelist type="QVariantList" key="RemoteLinux.LastDeployedRemoteTimes"/>
+      </valuemap>
+      <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Deployment</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Deployment</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
+     </valuemap>
+     <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
+     <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
+     <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ApplicationManagerPlugin.Deploy.Configuration</value>
+    </valuemap>
+    <value type="qlonglong" key="ProjectExplorer.Target.DeployConfigurationCount">2</value>
+    <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">0</value>
+   </valuemap>
+   <value type="qlonglong" key="ProjectExplorer.Target.BuildConfigurationCount">2</value>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
+    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Deployment</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Deployment</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
+    </valuemap>
+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
+    <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
+   </valuemap>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.1">
+    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
+      <value type="QString" key="CMakeProjectManager.MakeStep.BuildPreset"></value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
+       <value type="QString"></value>
+      </valuelist>
+      <value type="bool" key="CMakeProjectManager.MakeStep.ClearSystemEnvironment">false</value>
+      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.UserEnvironmentChanges"/>
+      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ApplicationManagerPlugin.Deploy.CMakePackageStep</value>
+     </valuemap>
+     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.1">
+      <value type="QString" key="ApplicationManagerPlugin.Deploy.InstallPackageStep.Arguments">install-package --acknowledge</value>
+      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Application Manager-Paket installieren</value>
+      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ApplicationManagerPlugin.Deploy.InstallPackageStep</value>
+      <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedFiles"/>
+      <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedHosts"/>
+      <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedRemotePaths"/>
+      <valuelist type="QVariantList" key="ProjectExplorer.RunConfiguration.LastDeployedSysroots"/>
+      <valuelist type="QVariantList" key="RemoteLinux.LastDeployedLocalTimes"/>
+      <valuelist type="QVariantList" key="RemoteLinux.LastDeployedRemoteTimes"/>
+     </valuemap>
+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">2</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Deployment</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Deployment</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
+    </valuemap>
+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
+    <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ApplicationManagerPlugin.Deploy.Configuration</value>
+   </valuemap>
+   <value type="qlonglong" key="ProjectExplorer.Target.DeployConfigurationCount">2</value>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
+    <value type="bool" key="Analyzer.Perf.Settings.UseGlobalSettings">true</value>
+    <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
+    <value type="int" key="Analyzer.Valgrind.Callgrind.CostFormat">0</value>
+    <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
+    <valuelist type="QVariantList" key="CustomOutputParsers"/>
+    <value type="int" key="PE.EnvironmentAspect.Base">2</value>
+    <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
+    <value type="bool" key="PE.EnvironmentAspect.PrintOnRun">false</value>
+    <value type="QString" key="PerfRecordArgsId">-e cpu-cycles --call-graph dwarf,4096 -F 250</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">yourpart-daemon</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeRunConfiguration.</value>
+    <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey">yourpart-daemon</value>
+    <value type="bool" key="ProjectExplorer.RunConfiguration.Customized">false</value>
+    <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
+    <value type="bool" key="RunConfiguration.UseLibrarySearchPath">true</value>
+    <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
+    <value type="QString" key="RunConfiguration.WorkingDirectory.default">/home/torsten/Programs/yourpart-daemon/build</value>
+   </valuemap>
+   <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
+  </valuemap>
+ </data>
+ <data>
+  <variable>ProjectExplorer.Project.TargetCount</variable>
+  <value type="qlonglong">1</value>
+ </data>
+ <data>
+  <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
+  <value type="int">22</value>
+ </data>
+ <data>
+  <variable>Version</variable>
+  <value type="int">22</value>
+ </data>
+</qtcreator>

CMakeLists.txt.user.d36652f

@@ -0,0 +1,205 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE QtCreatorProject>
+<!-- Written by QtCreator 12.0.2, 2025-07-18T07:45:58. -->
+<qtcreator>
+ <data>
+  <variable>EnvironmentId</variable>
+  <value type="QByteArray">{d36652ff-969b-426b-a63f-1edd325096c5}</value>
+ </data>
+ <data>
+  <variable>ProjectExplorer.Project.ActiveTarget</variable>
+  <value type="qlonglong">0</value>
+ </data>
+ <data>
+  <variable>ProjectExplorer.Project.EditorSettings</variable>
+  <valuemap type="QVariantMap">
+   <value type="bool" key="EditorConfiguration.AutoIndent">true</value>
+   <value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
+   <value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
+   <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
+    <value type="QString" key="language">Cpp</value>
+    <valuemap type="QVariantMap" key="value">
+     <value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
+    </valuemap>
+   </valuemap>
+   <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
+    <value type="QString" key="language">QmlJS</value>
+    <valuemap type="QVariantMap" key="value">
+     <value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
+    </valuemap>
+   </valuemap>
+   <value type="qlonglong" key="EditorConfiguration.CodeStyle.Count">2</value>
+   <value type="QByteArray" key="EditorConfiguration.Codec">UTF-8</value>
+   <value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
+   <value type="int" key="EditorConfiguration.IndentSize">4</value>
+   <value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
+   <value type="int" key="EditorConfiguration.MarginColumn">80</value>
+   <value type="bool" key="EditorConfiguration.MouseHiding">true</value>
+   <value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
+   <value type="int" key="EditorConfiguration.PaddingMode">1</value>
+   <value type="int" key="EditorConfiguration.PreferAfterWhitespaceComments">0</value>
+   <value type="bool" key="EditorConfiguration.PreferSingleLineComments">false</value>
+   <value type="bool" key="EditorConfiguration.ScrollWheelZooming">true</value>
+   <value type="bool" key="EditorConfiguration.ShowMargin">false</value>
+   <value type="int" key="EditorConfiguration.SmartBackspaceBehavior">0</value>
+   <value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
+   <value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
+   <value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
+   <value type="int" key="EditorConfiguration.TabSize">8</value>
+   <value type="bool" key="EditorConfiguration.UseGlobal">true</value>
+   <value type="bool" key="EditorConfiguration.UseIndenter">false</value>
+   <value type="int" key="EditorConfiguration.Utf8BomBehavior">1</value>
+   <value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
+   <value type="bool" key="EditorConfiguration.cleanIndentation">true</value>
+   <value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
+   <value type="QString" key="EditorConfiguration.ignoreFileTypes">*.md, *.MD, Makefile</value>
+   <value type="bool" key="EditorConfiguration.inEntireDocument">false</value>
+   <value type="bool" key="EditorConfiguration.skipTrailingWhitespace">true</value>
+   <value type="bool" key="EditorConfiguration.tintMarginArea">true</value>
+  </valuemap>
+ </data>
+ <data>
+  <variable>ProjectExplorer.Project.PluginSettings</variable>
+  <valuemap type="QVariantMap">
+   <valuemap type="QVariantMap" key="AutoTest.ActiveFrameworks">
+    <value type="bool" key="AutoTest.Framework.Boost">true</value>
+    <value type="bool" key="AutoTest.Framework.CTest">false</value>
+    <value type="bool" key="AutoTest.Framework.Catch">true</value>
+    <value type="bool" key="AutoTest.Framework.GTest">true</value>
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+    <valuelist type="QVariantList" key="ClangTools.SelectedFiles"/>
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+    <value type="bool" key="ClangTools.UseGlobalSettings">true</value>
+   </valuemap>
+   <valuemap type="QVariantMap" key="CppEditor.QuickFix">
+    <value type="bool" key="UseGlobalSettings">true</value>
+   </valuemap>
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+  <variable>ProjectExplorer.Project.Target.0</variable>
+  <valuemap type="QVariantMap">
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+      </valuelist>
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+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
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+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
+    </valuemap>
+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
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+    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Erstellen</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeBuildConfiguration</value>
+   </valuemap>
+   <value type="qlonglong" key="ProjectExplorer.Target.BuildConfigurationCount">1</value>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
+    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
+     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Deployment</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Deployment</value>
+     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
+    </valuemap>
+    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
+    <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
+    <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
+   </valuemap>
+   <value type="qlonglong" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
+   <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
+    <value type="bool" key="Analyzer.Perf.Settings.UseGlobalSettings">true</value>
+    <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
+    <value type="int" key="Analyzer.Valgrind.Callgrind.CostFormat">0</value>
+    <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
+    <value type="QString" key="Analyzer.Valgrind.ValgrindExecutable">/usr/bin/valgrind</value>
+    <valuelist type="QVariantList" key="CustomOutputParsers"/>
+    <value type="int" key="PE.EnvironmentAspect.Base">2</value>
+    <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
+    <value type="bool" key="PE.EnvironmentAspect.PrintOnRun">false</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">yourpart-daemon</value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeRunConfiguration.yourpart-daemon</value>
+    <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey">yourpart-daemon</value>
+    <value type="bool" key="ProjectExplorer.RunConfiguration.Customized">false</value>
+    <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
+    <value type="bool" key="RunConfiguration.UseLibrarySearchPath">true</value>
+    <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
+    <value type="QString" key="RunConfiguration.WorkingDirectory.default">/home/torsten/Programs/yourpart-daemon/build</value>
+   </valuemap>
+   <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
+  </valuemap>
+ </data>
+ <data>
+  <variable>ProjectExplorer.Project.TargetCount</variable>
+  <value type="qlonglong">1</value>
+ </data>
+ <data>
+  <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
+  <value type="int">22</value>
+ </data>
+ <data>
+  <variable>Version</variable>
+  <value type="int">22</value>
+ </data>
+</qtcreator>

SSL-SETUP.md

@@ -0,0 +1,168 @@
+# SSL/TLS Setup für YourPart Daemon
+
+Dieses Dokument beschreibt, wie Sie SSL/TLS-Zertifikate für den YourPart Daemon einrichten können.
+
+## 🚀 Schnellstart
+
+### 1. Self-Signed Certificate (Entwicklung/Testing)
+```bash
+./setup-ssl.sh
+# Wählen Sie Option 1
+```
+
+### 2. Let's Encrypt Certificate (Produktion)
+```bash
+./setup-ssl.sh
+# Wählen Sie Option 2
+```
+
+### 3. Apache2-Zertifikate verwenden (empfohlen für Ubuntu)
+```bash
+./setup-ssl.sh
+# Wählen Sie Option 4
+# Verwendet bereits vorhandene Apache2-Zertifikate
+# ⚠️ Warnung bei Snakeoil-Zertifikaten (nur für localhost)
+```
+
+### 4. DNS-01 Challenge (für komplexe Setups)
+```bash
+./setup-ssl-dns.sh
+# Für Cloudflare, Route53, etc.
+```
+
+## 📋 Voraussetzungen
+
+### Für Apache2-Zertifikate:
+- Apache2 installiert oder Zertifikate in Standard-Pfaden
+- Unterstützte Pfade (priorisiert nach Qualität):
+  - `/etc/letsencrypt/live/your-part.de/fullchain.pem` (Let's Encrypt - empfohlen)
+  - `/etc/letsencrypt/live/$(hostname)/fullchain.pem` (Let's Encrypt)
+  - `/etc/apache2/ssl/apache.crt` (Custom Apache2)
+  - `/etc/ssl/certs/ssl-cert-snakeoil.pem` (Ubuntu Standard - nur localhost)
+
+### Für Let's Encrypt (HTTP-01 Challenge):
+- Port 80 muss verfügbar sein
+- Domain `your-part.de` muss auf den Server zeigen
+- Kein anderer Service auf Port 80
+
+### Für DNS-01 Challenge:
+- DNS-Provider Account (Cloudflare, Route53, etc.)
+- API-Credentials für DNS-Management
+
+## 🔧 Konfiguration
+
+Nach der Zertifikats-Erstellung:
+
+1. **SSL in der Konfiguration aktivieren:**
+   ```ini
+   # /etc/yourpart/daemon.conf
+   WEBSOCKET_SSL_ENABLED=true
+   WEBSOCKET_SSL_CERT_PATH=/etc/yourpart/server.crt
+   WEBSOCKET_SSL_KEY_PATH=/etc/yourpart/server.key
+   ```
+
+2. **Daemon neu starten:**
+   ```bash
+   sudo systemctl restart yourpart-daemon
+   ```
+
+3. **Verbindung testen:**
+   ```bash
+   # WebSocket Secure
+   wss://your-part.de:4551
+   
+   # Oder ohne SSL
+   ws://your-part.de:4551
+   ```
+
+## 🔄 Automatische Erneuerung
+
+### Let's Encrypt-Zertifikate:
+- **Cron Job:** Täglich um 2:30 Uhr
+- **Script:** `/etc/yourpart/renew-ssl.sh`
+- **Log:** `/var/log/yourpart/ssl-renewal.log`
+
+### Apache2-Zertifikate:
+- **Ubuntu Snakeoil:** Automatisch von Apache2 verwaltet
+- **Let's Encrypt:** Automatische Erneuerung wenn erkannt
+- **Custom:** Manuelle Verwaltung erforderlich
+
+## 📁 Dateistruktur
+
+```
+/etc/yourpart/
+├── server.crt          # Zertifikat (Symlink zu Let's Encrypt)
+├── server.key          # Private Key (Symlink zu Let's Encrypt)
+├── renew-ssl.sh        # Auto-Renewal Script
+└── cloudflare.ini      # Cloudflare Credentials (falls verwendet)
+
+/etc/letsencrypt/live/your-part.de/
+├── fullchain.pem       # Vollständige Zertifikatskette
+├── privkey.pem         # Private Key
+├── cert.pem            # Zertifikat
+└── chain.pem           # Intermediate Certificate
+```
+
+## 🛠️ Troubleshooting
+
+### Zertifikat wird nicht akzeptiert
+```bash
+# Prüfe Zertifikats-Gültigkeit
+openssl x509 -in /etc/yourpart/server.crt -text -noout
+
+# Prüfe Berechtigungen
+ls -la /etc/yourpart/server.*
+```
+
+### Let's Encrypt Challenge fehlgeschlagen
+```bash
+# Prüfe Port 80
+sudo netstat -tlnp | grep :80
+
+# Prüfe DNS
+nslookup your-part.de
+
+# Prüfe Firewall
+sudo ufw status
+```
+
+### Auto-Renewal funktioniert nicht
+```bash
+# Prüfe Cron Jobs
+sudo crontab -l
+
+# Teste Renewal Script
+sudo /etc/yourpart/renew-ssl.sh
+
+# Prüfe Logs
+tail -f /var/log/yourpart/ssl-renewal.log
+```
+
+## 🔒 Sicherheit
+
+### Berechtigungen
+- **Zertifikat:** `644` (readable by all, writable by owner)
+- **Private Key:** `600` (readable/writable by owner only)
+- **Owner:** `yourpart:yourpart`
+
+### Firewall
+```bash
+# Öffne Port 80 für Let's Encrypt Challenge
+sudo ufw allow 80/tcp
+
+# Öffne Port 4551 für WebSocket
+sudo ufw allow 4551/tcp
+```
+
+## 📚 Weitere Informationen
+
+- [Let's Encrypt Dokumentation](https://letsencrypt.org/docs/)
+- [Certbot Dokumentation](https://certbot.eff.org/docs/)
+- [libwebsockets SSL](https://libwebsockets.org/lws-api-doc-master/html/group__ssl.html)
+
+## 🆘 Support
+
+Bei Problemen:
+1. Prüfen Sie die Logs: `sudo journalctl -u yourpart-daemon -f`
+2. Testen Sie die Zertifikate: `openssl s_client -connect your-part.de:4551`
+3. Prüfen Sie die Firewall: `sudo ufw status`

backend/analyze-indexes.js

@@ -0,0 +1,184 @@
+#!/usr/bin/env node
+
+/**
+ * Script zur Analyse und Empfehlung von Indizes
+ * 
+ * Analysiert:
+ * - Tabellen mit vielen Sequential Scans
+ * - Fehlende Composite Indizes für häufige JOINs
+ * - Ungenutzte Indizes
+ */
+
+import './config/loadEnv.js';
+import { sequelize } from './utils/sequelize.js';
+
+async function main() {
+    try {
+        console.log('🔍 Index-Analyse und Empfehlungen\n');
+        console.log('='.repeat(60) + '\n');
+
+        // 1. Tabellen mit vielen Sequential Scans
+        await analyzeSequentialScans();
+
+        // 2. Prüfe häufige JOIN-Patterns
+        await analyzeJoinPatterns();
+
+        // 3. Ungenutzte Indizes
+        await analyzeUnusedIndexes();
+
+        console.log('='.repeat(60));
+        console.log('✅ Analyse abgeschlossen\n');
+
+        await sequelize.close();
+        process.exit(0);
+
+    } catch (error) {
+        console.error('❌ Fehler:', error.message);
+        console.error(error.stack);
+        process.exit(1);
+    }
+}
+
+async function analyzeSequentialScans() {
+    console.log('📊 1. Tabellen mit vielen Sequential Scans\n');
+
+    const [tables] = await sequelize.query(`
+        SELECT 
+            schemaname || '.' || relname as table_name,
+            seq_scan,
+            seq_tup_read,
+            idx_scan,
+            seq_tup_read / NULLIF(seq_scan, 0) as avg_rows_per_scan,
+            CASE 
+                WHEN seq_scan + idx_scan > 0 
+                THEN round((seq_scan::numeric / (seq_scan + idx_scan)) * 100, 2)
+                ELSE 0
+            END as seq_scan_percent
+        FROM pg_stat_user_tables
+        WHERE schemaname IN ('falukant_data', 'falukant_type', 'community', 'logs')
+        AND seq_scan > 1000
+        ORDER BY seq_tup_read DESC
+        LIMIT 10;
+    `);
+
+    if (tables.length > 0) {
+        console.log('   ⚠️  Tabellen mit vielen Sequential Scans:');
+        tables.forEach(t => {
+            console.log(`\n   ${t.table_name}:`);
+            console.log(`      Sequential Scans: ${parseInt(t.seq_scan).toLocaleString()}`);
+            console.log(`      Zeilen gelesen: ${parseInt(t.seq_tup_read).toLocaleString()}`);
+            console.log(`      Index Scans: ${parseInt(t.idx_scan).toLocaleString()}`);
+            console.log(`      Seq Scan Anteil: ${t.seq_scan_percent}%`);
+            console.log(`      Ø Zeilen pro Scan: ${parseInt(t.avg_rows_per_scan).toLocaleString()}`);
+            
+            if (t.seq_scan_percent > 50) {
+                console.log(`      ⚠️  KRITISCH: Mehr als 50% Sequential Scans!`);
+            }
+        });
+        console.log('');
+    }
+}
+
+async function analyzeJoinPatterns() {
+    console.log('🔗 2. Analyse häufiger JOIN-Patterns\n');
+
+    // Prüfe welche Indizes auf knowledge existieren
+    const [knowledgeIndexes] = await sequelize.query(`
+        SELECT 
+            indexname,
+            indexdef
+        FROM pg_indexes
+        WHERE schemaname = 'falukant_data'
+        AND tablename = 'knowledge'
+        ORDER BY indexname;
+    `);
+
+    console.log('   Indizes auf falukant_data.knowledge:');
+    if (knowledgeIndexes.length > 0) {
+        knowledgeIndexes.forEach(idx => {
+            console.log(`      - ${idx.indexname}: ${idx.indexdef}`);
+        });
+    } else {
+        console.log('      Keine Indizes gefunden');
+    }
+    console.log('');
+
+    // Empfehlung: Composite Index auf (character_id, product_id)
+    const [knowledgeUsage] = await sequelize.query(`
+        SELECT 
+            idx_scan,
+            idx_tup_read,
+            idx_tup_fetch
+        FROM pg_stat_user_indexes
+        WHERE schemaname = 'falukant_data'
+        AND relname = 'knowledge'
+        AND indexrelname = 'idx_knowledge_character_id';
+    `);
+
+    if (knowledgeUsage.length > 0) {
+        const usage = knowledgeUsage[0];
+        console.log('   Aktuelle Nutzung von idx_knowledge_character_id:');
+        console.log(`      Scans: ${parseInt(usage.idx_scan).toLocaleString()}`);
+        console.log(`      Zeilen gelesen: ${parseInt(usage.idx_tup_read).toLocaleString()}`);
+        console.log('');
+        
+        console.log('   💡 Empfehlung:');
+        console.log('      CREATE INDEX IF NOT EXISTS idx_knowledge_character_product');
+        console.log('      ON falukant_data.knowledge(character_id, product_id);');
+        console.log('      → Wird häufig für JOINs mit character_id UND product_id verwendet\n');
+    }
+
+    // Prüfe character Indizes
+    const [characterIndexes] = await sequelize.query(`
+        SELECT 
+            indexname,
+            indexdef
+        FROM pg_indexes
+        WHERE schemaname = 'falukant_data'
+        AND tablename = 'character'
+        ORDER BY indexname;
+    `);
+
+    console.log('   Indizes auf falukant_data.character:');
+    if (characterIndexes.length > 0) {
+        characterIndexes.forEach(idx => {
+            console.log(`      - ${idx.indexname}: ${idx.indexdef}`);
+        });
+    }
+    console.log('');
+}
+
+async function analyzeUnusedIndexes() {
+    console.log('🗑️  3. Ungenutzte Indizes\n');
+
+    const [unused] = await sequelize.query(`
+        SELECT 
+            schemaname || '.' || indexrelname as index_name,
+            schemaname || '.' || relname as table_name,
+            pg_size_pretty(pg_relation_size(indexrelid)) as index_size,
+            idx_scan as scans,
+            pg_relation_size(indexrelid) as size_bytes
+        FROM pg_stat_user_indexes
+        WHERE schemaname IN ('falukant_data', 'falukant_type', 'community', 'logs')
+        AND idx_scan = 0
+        AND pg_relation_size(indexrelid) > 1024 * 1024  -- Größer als 1MB
+        ORDER BY pg_relation_size(indexrelid) DESC
+        LIMIT 10;
+    `);
+
+    if (unused.length > 0) {
+        console.log('   ⚠️  Ungenutzte Indizes (> 1MB):');
+        unused.forEach(idx => {
+            console.log(`      ${idx.index_name} auf ${idx.table_name}`);
+            console.log(`         Größe: ${idx.index_size}, Scans: ${idx.scans}`);
+        });
+        console.log('');
+        console.log('   💡 Überlege, ob diese Indizes gelöscht werden können:');
+        console.log('      DROP INDEX IF EXISTS <index_name>;');
+        console.log('');
+    } else {
+        console.log('   ✅ Keine großen ungenutzten Indizes gefunden\n');
+    }
+}
+
+main();

backend/app.js

@@ -12,6 +12,7 @@ import socialnetworkRouter from './routers/socialnetworkRouter.js';
 import forumRouter from './routers/forumRouter.js';
 import falukantRouter from './routers/falukantRouter.js';
 import friendshipRouter from './routers/friendshipRouter.js';
+import modelsProxyRouter from './routers/modelsProxyRouter.js';
 import blogRouter from './routers/blogRouter.js';
 import match3Router from './routers/match3Router.js';
 import taxiRouter from './routers/taxiRouter.js';
@@ -19,6 +20,9 @@ import taxiMapRouter from './routers/taxiMapRouter.js';
 import taxiHighscoreRouter from './routers/taxiHighscoreRouter.js';
 import termineRouter from './routers/termineRouter.js';
 import vocabRouter from './routers/vocabRouter.js';
+import dashboardRouter from './routers/dashboardRouter.js';
+import newsRouter from './routers/newsRouter.js';
+import calendarRouter from './routers/calendarRouter.js';
 import cors from 'cors';
 import './jobs/sessionCleanup.js';
 
@@ -74,11 +78,22 @@ app.use('/api/vocab', vocabRouter);
 app.use('/api/forum', forumRouter);
 app.use('/api/falukant', falukantRouter);
 app.use('/api/friendships', friendshipRouter);
+app.use('/api/models', modelsProxyRouter);
 app.use('/api/blog', blogRouter);
 app.use('/api/termine', termineRouter);
+app.use('/api/dashboard', dashboardRouter);
+app.use('/api/news', newsRouter);
+app.use('/api/calendar', calendarRouter);
 
 // Serve frontend SPA for non-API routes to support history mode clean URLs
+// /models/* nicht statisch ausliefern – nur über /api/models (Proxy mit Komprimierung)
 const frontendDir = path.join(__dirname, '../frontend');
+app.use((req, res, next) => {
+  if (req.path.startsWith('/models/')) {
+    return res.status(404).send('Use /api/models/ for 3D models (optimized).');
+  }
+  next();
+});
 app.use(express.static(path.join(frontendDir, 'dist')));
 app.get(/^\/(?!api\/).*/, (req, res) => {
   res.sendFile(path.join(frontendDir, 'dist', 'index.html'));

backend/check-connections.js

@@ -0,0 +1,86 @@
+#!/usr/bin/env node
+
+/**
+ * Script zum Prüfen und Bereinigen von PostgreSQL-Verbindungen
+ */
+
+import './config/loadEnv.js';
+import { sequelize } from './utils/sequelize.js';
+
+async function main() {
+    try {
+        console.log('🔍 Prüfe PostgreSQL-Verbindungen...\n');
+        
+        // Prüfe aktive Verbindungen
+        const [connections] = await sequelize.query(`
+            SELECT 
+                count(*) as total,
+                count(*) FILTER (WHERE state = 'active') as active,
+                count(*) FILTER (WHERE state = 'idle') as idle,
+                count(*) FILTER (WHERE state = 'idle in transaction') as idle_in_transaction,
+                count(*) FILTER (WHERE usename = current_user) as my_connections
+            FROM pg_stat_activity
+            WHERE datname = current_database();
+        `);
+        
+        console.log('📊 Verbindungsstatistik:');
+        console.log(`   Gesamt: ${connections[0].total}`);
+        console.log(`   Aktiv: ${connections[0].active}`);
+        console.log(`   Idle: ${connections[0].idle}`);
+        console.log(`   Idle in Transaction: ${connections[0].idle_in_transaction}`);
+        console.log(`   Meine Verbindungen: ${connections[0].my_connections}\n`);
+        
+        // Prüfe max_connections Limit
+        const [maxConn] = await sequelize.query(`
+            SELECT setting::int as max_connections 
+            FROM pg_settings 
+            WHERE name = 'max_connections';
+        `);
+        console.log(`📈 Max Connections Limit: ${maxConn[0].max_connections}`);
+        console.log(`📉 Verfügbare Connections: ${maxConn[0].max_connections - connections[0].total}\n`);
+        
+        // Zeige alte idle Verbindungen
+        const [oldConnections] = await sequelize.query(`
+            SELECT 
+                pid,
+                usename,
+                application_name,
+                state,
+                state_change,
+                now() - state_change as idle_duration,
+                query
+            FROM pg_stat_activity
+            WHERE datname = current_database()
+            AND state = 'idle'
+            AND state_change < now() - interval '1 minute'
+            ORDER BY state_change ASC
+            LIMIT 10;
+        `);
+        
+        if (oldConnections.length > 0) {
+            console.log(`⚠️  Gefunden ${oldConnections.length} alte idle Verbindungen (> 1 Minute):`);
+            oldConnections.forEach(conn => {
+                console.log(`   PID: ${conn.pid}, User: ${conn.usename}, Idle seit: ${conn.idle_duration}`);
+            });
+            console.log('\n💡 Tipp: Du kannst alte Verbindungen beenden mit:');
+            console.log('   SELECT pg_terminate_backend(pid) FROM pg_stat_activity');
+            console.log('   WHERE datname = current_database() AND state = \'idle\' AND state_change < now() - interval \'5 minutes\';\n');
+        }
+        
+        // Prüfe ob wir nahe am Limit sind
+        const usagePercent = (connections[0].total / maxConn[0].max_connections) * 100;
+        if (usagePercent > 80) {
+            console.log(`⚠️  WARNUNG: ${usagePercent.toFixed(1)}% der verfügbaren Verbindungen werden verwendet!`);
+            console.log('   Es könnte sein, dass nicht genug Verbindungen verfügbar sind.\n');
+        }
+        
+        await sequelize.close();
+        process.exit(0);
+        
+    } catch (error) {
+        console.error('❌ Fehler:', error.message);
+        process.exit(1);
+    }
+}
+
+main();

backend/check-knowledge-pkey.js

@@ -0,0 +1,142 @@
+#!/usr/bin/env node
+
+/**
+ * Script zur Analyse des knowledge_pkey Problems
+ * 
+ * Prüft warum knowledge_pkey nicht verwendet wird
+ */
+
+import './config/loadEnv.js';
+import { sequelize } from './utils/sequelize.js';
+
+async function main() {
+    try {
+        console.log('🔍 Analyse knowledge_pkey Problem\n');
+        console.log('='.repeat(60) + '\n');
+
+        // Prüfe ob knowledge einen Primary Key hat
+        const [pkInfo] = await sequelize.query(`
+            SELECT 
+                a.attname as column_name,
+                t.conname as constraint_name,
+                t.contype as constraint_type
+            FROM pg_constraint t
+            JOIN pg_class c ON c.oid = t.conrelid
+            JOIN pg_namespace n ON n.oid = c.relnamespace
+            JOIN pg_attribute a ON a.attrelid = c.oid AND a.attnum = ANY(t.conkey)
+            WHERE n.nspname = 'falukant_data'
+            AND c.relname = 'knowledge'
+            AND t.contype = 'p';
+        `);
+
+        console.log('📋 Primary Key Information:');
+        if (pkInfo.length > 0) {
+            pkInfo.forEach(pk => {
+                console.log(`   Constraint: ${pk.constraint_name}`);
+                console.log(`   Spalte: ${pk.column_name}`);
+                console.log(`   Typ: ${pk.constraint_type === 'p' ? 'PRIMARY KEY' : pk.constraint_type}`);
+            });
+        } else {
+            console.log('   ⚠️  Kein Primary Key gefunden!');
+        }
+        console.log('');
+
+        // Prüfe alle Indizes auf knowledge
+        const [allIndexes] = await sequelize.query(`
+            SELECT 
+                indexname,
+                indexdef,
+                idx_scan,
+                idx_tup_read,
+                idx_tup_fetch
+            FROM pg_indexes
+            LEFT JOIN pg_stat_user_indexes 
+                ON pg_stat_user_indexes.indexrelname = pg_indexes.indexname
+                AND pg_stat_user_indexes.schemaname = pg_indexes.schemaname
+            WHERE pg_indexes.schemaname = 'falukant_data'
+            AND pg_indexes.tablename = 'knowledge'
+            ORDER BY indexname;
+        `);
+
+        console.log('📊 Alle Indizes auf knowledge:');
+        allIndexes.forEach(idx => {
+            console.log(`\n   ${idx.indexname}:`);
+            console.log(`      Definition: ${idx.indexdef}`);
+            console.log(`      Scans: ${idx.idx_scan ? parseInt(idx.idx_scan).toLocaleString() : 'N/A'}`);
+            console.log(`      Zeilen gelesen: ${idx.idx_tup_read ? parseInt(idx.idx_tup_read).toLocaleString() : 'N/A'}`);
+        });
+        console.log('');
+
+        // Prüfe Tabellenstruktur
+        const [tableStructure] = await sequelize.query(`
+            SELECT 
+                column_name,
+                data_type,
+                is_nullable,
+                column_default
+            FROM information_schema.columns
+            WHERE table_schema = 'falukant_data'
+            AND table_name = 'knowledge'
+            ORDER BY ordinal_position;
+        `);
+
+        console.log('📋 Tabellenstruktur:');
+        tableStructure.forEach(col => {
+            console.log(`   ${col.column_name}: ${col.data_type} ${col.is_nullable === 'NO' ? 'NOT NULL' : 'NULL'}`);
+        });
+        console.log('');
+
+        // Erklärung: Warum knowledge_pkey ungenutzt ist
+        const pkUnused = allIndexes.find(i => i.indexname === 'knowledge_pkey' && (i.idx_scan == null || parseInt(i.idx_scan) === 0));
+        if (pkUnused) {
+            console.log('💡 Warum knowledge_pkey (0 Scans) ungenutzt ist:');
+            console.log('   Alle Zugriffe filtern nach (character_id, product_id), nie nach id.');
+            console.log('   Der PK-Index wird nur für Eindeutigkeit/Referenzen genutzt, nicht für Lookups.');
+            console.log('   idx_knowledge_character_product deckt die tatsächlichen Queries ab.\n');
+        }
+
+        // Prüfe ob Queries mit id (Primary Key) gemacht werden
+        let idUsage = [];
+        try {
+            const [rows] = await sequelize.query(`
+            SELECT 
+                query,
+                calls,
+                total_exec_time,
+                mean_exec_time
+            FROM pg_stat_statements
+            WHERE query LIKE '%knowledge%'
+            AND (query LIKE '%knowledge.id%' OR query LIKE '%knowledge%id%')
+            ORDER BY calls DESC
+            LIMIT 5;
+        `);
+            idUsage = rows;
+        } catch (e) {
+            console.log('   ℹ️  pg_stat_statements nicht verfügbar – keine Query-Statistik.\n');
+        }
+
+        if (idUsage.length > 0) {
+            console.log('🔍 Queries die knowledge.id verwenden:');
+            idUsage.forEach(q => {
+                console.log(`   Aufrufe: ${parseInt(q.calls).toLocaleString()}`);
+                console.log(`   Query: ${q.query.substring(0, 150)}...`);
+                console.log('');
+            });
+        }
+
+        await sequelize.close();
+        process.exit(0);
+
+    } catch (error) {
+        if (error.message.includes('pg_stat_statements')) {
+            console.log('   ⚠️  pg_stat_statements ist nicht aktiviert oder nicht verfügbar\n');
+        } else {
+            console.error('❌ Fehler:', error.message);
+            console.error(error.stack);
+        }
+        await sequelize.close();
+        process.exit(1);
+    }
+}
+
+main();

backend/cleanup-connections.js

@@ -0,0 +1,55 @@
+#!/usr/bin/env node
+
+/**
+ * Script zum Bereinigen von alten/idle PostgreSQL-Verbindungen
+ */
+
+import './config/loadEnv.js';
+import { sequelize } from './utils/sequelize.js';
+
+async function main() {
+    try {
+        console.log('🧹 Bereinige alte PostgreSQL-Verbindungen...\n');
+        
+        // Beende idle Verbindungen, die älter als 5 Minuten sind (außer unserer eigenen)
+        const [result] = await sequelize.query(`
+            SELECT pg_terminate_backend(pid) as terminated
+            FROM pg_stat_activity
+            WHERE datname = current_database()
+            AND pid <> pg_backend_pid()
+            AND state = 'idle'
+            AND state_change < now() - interval '5 minutes';
+        `);
+        
+        const terminated = result.filter(r => r.terminated).length;
+        console.log(`✅ ${terminated} alte idle Verbindungen wurden beendet\n`);
+        
+        // Zeige verbleibende Verbindungen
+        const [connections] = await sequelize.query(`
+            SELECT 
+                count(*) as total,
+                count(*) FILTER (WHERE state = 'active') as active,
+                count(*) FILTER (WHERE state = 'idle') as idle
+            FROM pg_stat_activity
+            WHERE datname = current_database();
+        `);
+        
+        console.log('📊 Verbleibende Verbindungen:');
+        console.log(`   Gesamt: ${connections[0].total}`);
+        console.log(`   Aktiv: ${connections[0].active}`);
+        console.log(`   Idle: ${connections[0].idle}\n`);
+        
+        await sequelize.close();
+        process.exit(0);
+        
+    } catch (error) {
+        console.error('❌ Fehler:', error.message);
+        if (error.message.includes('SUPERUSER')) {
+            console.error('\n💡 Tipp: Du benötigst Superuser-Rechte oder musst warten, bis Verbindungen freigegeben werden.');
+            console.error('   Versuche es in ein paar Minuten erneut.');
+        }
+        process.exit(1);
+    }
+}
+
+main();

backend/controllers/calendarController.js

@@ -0,0 +1,203 @@
+import calendarService from '../services/calendarService.js';
+
+function getHashedUserId(req) {
+    return req.headers?.userid;
+}
+
+export default {
+    /**
+     * GET /api/calendar/events
+     * Get all events for the authenticated user
+     * Query params: startDate, endDate (optional)
+     */
+    async getEvents(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+
+        try {
+            const { startDate, endDate } = req.query;
+            const events = await calendarService.getEvents(hashedUserId, { startDate, endDate });
+            res.json(events);
+        } catch (error) {
+            console.error('Calendar getEvents:', error);
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    /**
+     * GET /api/calendar/events/:id
+     * Get a single event by ID
+     */
+    async getEvent(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+
+        try {
+            const event = await calendarService.getEvent(hashedUserId, req.params.id);
+            res.json(event);
+        } catch (error) {
+            console.error('Calendar getEvent:', error);
+            if (error.message === 'Event not found') {
+                return res.status(404).json({ error: 'Event not found' });
+            }
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    /**
+     * POST /api/calendar/events
+     * Create a new event
+     */
+    async createEvent(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+
+        try {
+            const eventData = req.body;
+            if (!eventData.title || !eventData.startDate) {
+                return res.status(400).json({ error: 'Title and startDate are required' });
+            }
+
+            const event = await calendarService.createEvent(hashedUserId, eventData);
+            res.status(201).json(event);
+        } catch (error) {
+            console.error('Calendar createEvent:', error);
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    /**
+     * PUT /api/calendar/events/:id
+     * Update an existing event
+     */
+    async updateEvent(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+
+        try {
+            const eventData = req.body;
+            if (!eventData.title || !eventData.startDate) {
+                return res.status(400).json({ error: 'Title and startDate are required' });
+            }
+
+            const event = await calendarService.updateEvent(hashedUserId, req.params.id, eventData);
+            res.json(event);
+        } catch (error) {
+            console.error('Calendar updateEvent:', error);
+            if (error.message === 'Event not found') {
+                return res.status(404).json({ error: 'Event not found' });
+            }
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    /**
+     * DELETE /api/calendar/events/:id
+     * Delete an event
+     */
+    async deleteEvent(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+
+        try {
+            await calendarService.deleteEvent(hashedUserId, req.params.id);
+            res.json({ success: true });
+        } catch (error) {
+            console.error('Calendar deleteEvent:', error);
+            if (error.message === 'Event not found') {
+                return res.status(404).json({ error: 'Event not found' });
+            }
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    /**
+     * GET /api/calendar/birthdays
+     * Get friends' birthdays for a given year
+     * Query params: year (required)
+     */
+    async getFriendsBirthdays(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+
+        try {
+            const year = parseInt(req.query.year) || new Date().getFullYear();
+            const birthdays = await calendarService.getFriendsBirthdays(hashedUserId, year);
+            res.json(birthdays);
+        } catch (error) {
+            console.error('Calendar getFriendsBirthdays:', error);
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    /**
+     * GET /api/calendar/widget/birthdays
+     * Get upcoming birthdays for widget display
+     */
+    async getWidgetBirthdays(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+
+        try {
+            const limit = parseInt(req.query.limit) || 10;
+            const birthdays = await calendarService.getUpcomingBirthdays(hashedUserId, limit);
+            res.json(birthdays);
+        } catch (error) {
+            console.error('Calendar getWidgetBirthdays:', error);
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    /**
+     * GET /api/calendar/widget/upcoming
+     * Get upcoming events for widget display
+     */
+    async getWidgetUpcoming(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+
+        try {
+            const limit = parseInt(req.query.limit) || 10;
+            const events = await calendarService.getUpcomingEvents(hashedUserId, limit);
+            res.json(events);
+        } catch (error) {
+            console.error('Calendar getWidgetUpcoming:', error);
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    /**
+     * GET /api/calendar/widget/mini
+     * Get mini calendar data for widget display
+     */
+    async getWidgetMiniCalendar(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+
+        try {
+            const data = await calendarService.getMiniCalendarData(hashedUserId);
+            res.json(data);
+        } catch (error) {
+            console.error('Calendar getWidgetMiniCalendar:', error);
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    }
+};

backend/controllers/dashboardController.js

@@ -0,0 +1,50 @@
+import dashboardService from '../services/dashboardService.js';
+
+function getHashedUserId(req) {
+    return req.headers?.userid;
+}
+
+export default {
+    /** Liste der möglichen Widget-Typen (öffentlich, keine Auth nötig wenn gewünscht – aktuell mit Auth). */
+    async getAvailableWidgets(req, res) {
+        try {
+            const list = await dashboardService.getAvailableWidgets();
+            res.json(list);
+        } catch (error) {
+            console.error('Dashboard getAvailableWidgets:', error);
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    async getConfig(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+        try {
+            const config = await dashboardService.getConfig(hashedUserId);
+            res.json(config);
+        } catch (error) {
+            console.error('Dashboard getConfig:', error);
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    },
+
+    async setConfig(req, res) {
+        const hashedUserId = getHashedUserId(req);
+        if (!hashedUserId) {
+            return res.status(401).json({ error: 'Unauthorized' });
+        }
+        const config = req.body;
+        if (!config || typeof config !== 'object') {
+            return res.status(400).json({ error: 'Invalid config' });
+        }
+        try {
+            const result = await dashboardService.setConfig(hashedUserId, config);
+            res.json(result);
+        } catch (error) {
+            console.error('Dashboard setConfig:', error);
+            res.status(500).json({ error: error.message || 'Internal server error' });
+        }
+    }
+};

backend/controllers/falukantController.js

@@ -56,6 +56,10 @@ class FalukantController {
             if (!page) page = 1;
             return this.service.moneyHistory(userId, page, filter);
         });
+        this.moneyHistoryGraph = this._wrapWithUser((userId, req) => {
+            const { range } = req.body || {};
+            return this.service.moneyHistoryGraph(userId, range || '24h');
+        });
         this.getStorage = this._wrapWithUser((userId, req) => this.service.getStorage(userId, req.params.branchId));
         this.buyStorage = this._wrapWithUser((userId, req) => {
             const { branchId, amount, stockTypeId } = req.body;
@@ -93,17 +97,35 @@ class FalukantController {
             return result;
         });
         this.setHeir = this._wrapWithUser((userId, req) => this.service.setHeir(userId, req.body.childCharacterId));
-        this.getPotentialHeirs = this._wrapWithUser((userId) => this.service.getPotentialHeirs(userId));
-        this.selectHeir = this._wrapWithUser((userId, req) => this.service.selectHeir(userId, req.body.heirId));
         this.acceptMarriageProposal = this._wrapWithUser((userId, req) => this.service.acceptMarriageProposal(userId, req.body.proposalId));
+        this.cancelWooing = this._wrapWithUser(async (userId) => {
+            try {
+                return await this.service.cancelWooing(userId);
+            } catch (e) {
+                if (e && e.name === 'PreconditionError' && e.message === 'cancelTooSoon') {
+                    throw { status: 412, message: 'cancelTooSoon', retryAt: e.meta?.retryAt };
+                }
+                throw e;
+            }
+        }, { successStatus: 202 });
         this.getGifts = this._wrapWithUser((userId) => {
             console.log('🔍 getGifts called with userId:', userId);
             return this.service.getGifts(userId);
         });
         this.getChildren = this._wrapWithUser((userId) => this.service.getChildren(userId));
-        this.sendGift = this._wrapWithUser((userId, req) => this.service.sendGift(userId, req.body.giftId));
+        this.sendGift = this._wrapWithUser(async (userId, req) => {
+            try {
+                return await this.service.sendGift(userId, req.body.giftId);
+            } catch (e) {
+                if (e && e.name === 'PreconditionError' && e.message === 'tooOften') {
+                    throw { status: 412, message: 'tooOften', retryAt: e.meta?.retryAt };
+                }
+                throw e;
+            }
+        });
 
         this.getTitlesOfNobility = this._wrapWithUser((userId) => this.service.getTitlesOfNobility(userId));
+        this.getReputationActions = this._wrapWithUser((userId) => this.service.getReputationActions(userId));
         this.getHouseTypes = this._wrapWithUser((userId) => this.service.getHouseTypes(userId));
         this.getMoodAffect = this._wrapWithUser((userId) => this.service.getMoodAffect(userId));
         this.getCharacterAffect = this._wrapWithUser((userId) => this.service.getCharacterAffect(userId));
@@ -118,17 +140,22 @@ class FalukantController {
         }, { successStatus: 201 });
         this.getParties = this._wrapWithUser((userId) => this.service.getParties(userId));
 
-        this.getReputationActions = this._wrapWithUser((userId) => this.service.getReputationActions(userId));
-        this.executeReputationAction = this._wrapWithUser((userId, req) => {
-            const { actionTypeId } = req.body;
-            return this.service.executeReputationAction(userId, actionTypeId);
-        }, { successStatus: 201 });
-
         this.getNotBaptisedChildren = this._wrapWithUser((userId) => this.service.getNotBaptisedChildren(userId));
         this.baptise = this._wrapWithUser((userId, req) => {
             const { characterId: childId, firstName } = req.body;
             return this.service.baptise(userId, childId, firstName);
         });
+        this.getChurchOverview = this._wrapWithUser((userId) => this.service.getChurchOverview(userId));
+        this.getAvailableChurchPositions = this._wrapWithUser((userId) => this.service.getAvailableChurchPositions(userId));
+        this.getSupervisedApplications = this._wrapWithUser((userId) => this.service.getSupervisedApplications(userId));
+        this.applyForChurchPosition = this._wrapWithUser((userId, req) => {
+            const { officeTypeId, regionId } = req.body;
+            return this.service.applyForChurchPosition(userId, officeTypeId, regionId);
+        });
+        this.decideOnChurchApplication = this._wrapWithUser((userId, req) => {
+            const { applicationId, decision } = req.body;
+            return this.service.decideOnChurchApplication(userId, applicationId, decision);
+        });
 
         this.getEducation = this._wrapWithUser((userId) => this.service.getEducation(userId));
         this.sendToSchool = this._wrapWithUser((userId, req) => {
@@ -144,7 +171,16 @@ class FalukantController {
         this.advanceNobility = this._wrapWithUser((userId) => this.service.advanceNobility(userId));
 
         this.getHealth = this._wrapWithUser((userId) => this.service.getHealth(userId));
-        this.healthActivity = this._wrapWithUser((userId, req) => this.service.healthActivity(userId, req.body.measureTr));
+        this.healthActivity = this._wrapWithUser(async (userId, req) => {
+            try {
+                return await this.service.healthActivity(userId, req.body.measureTr);
+            } catch (e) {
+                if (e && e.name === 'PreconditionError' && e.message === 'tooClose') {
+                    throw { status: 412, message: 'tooClose', retryAt: e.meta?.retryAt };
+                }
+                throw e;
+            }
+        });
 
         this.getPoliticsOverview = this._wrapWithUser((userId) => this.service.getPoliticsOverview(userId));
         this.getOpenPolitics = this._wrapWithUser((userId) => this.service.getOpenPolitics(userId));
@@ -162,17 +198,12 @@ class FalukantController {
             }
             return this.service.getProductPriceInRegion(userId, productId, regionId);
         });
-        this.getProductPricesInRegionBatch = this._wrapWithUser((userId, req) => {
+        this.getAllProductPricesInRegion = this._wrapWithUser((userId, req) => {
-            const productIds = req.query.productIds;
             const regionId = parseInt(req.query.regionId, 10);
-            if (!productIds || Number.isNaN(regionId)) {
+            if (Number.isNaN(regionId)) {
-                throw new Error('productIds (comma-separated) and regionId are required');
+                throw new Error('regionId is required');
             }
-            const productIdArray = productIds.split(',').map(id => parseInt(id.trim(), 10)).filter(id => !Number.isNaN(id));
+            return this.service.getAllProductPricesInRegion(userId, regionId);
-            if (productIdArray.length === 0) {
-                throw new Error('At least one valid productId is required');
-            }
-            return this.service.getProductPricesInRegionBatch(userId, productIdArray, regionId);
         });
         this.getProductPricesInCities = this._wrapWithUser((userId, req) => {
             const productId = parseInt(req.query.productId, 10);
@@ -183,6 +214,16 @@ class FalukantController {
             }
             return this.service.getProductPricesInCities(userId, productId, currentPrice, currentRegionId);
         });
+        this.getProductPricesInCitiesBatch = this._wrapWithUser((userId, req) => {
+            const body = req.body || {};
+            const items = Array.isArray(body.items) ? body.items : [];
+            const currentRegionId = body.currentRegionId != null ? parseInt(body.currentRegionId, 10) : null;
+            const valid = items.map(i => ({
+                productId: parseInt(i.productId, 10),
+                currentPrice: parseFloat(i.currentPrice)
+            })).filter(i => !Number.isNaN(i.productId) && !Number.isNaN(i.currentPrice));
+            return this.service.getProductPricesInCitiesBatch(userId, valid, Number.isNaN(currentRegionId) ? null : currentRegionId);
+        });
         this.renovate = this._wrapWithUser((userId, req) => this.service.renovate(userId, req.body.element));
         this.renovateAll = this._wrapWithUser((userId) => this.service.renovateAll(userId));
 
@@ -190,6 +231,7 @@ class FalukantController {
         this.getNotifications = this._wrapWithUser((userId) => this.service.getNotifications(userId));
         this.getAllNotifications = this._wrapWithUser((userId, req) => this.service.getAllNotifications(userId, req.query.page, req.query.size));
         this.markNotificationsShown = this._wrapWithUser((userId) => this.service.markNotificationsShown(userId), { successStatus: 202 });
+        this.getDashboardWidget = this._wrapWithUser((userId) => this.service.getDashboardWidget(userId));
         this.getUndergroundTargets = this._wrapWithUser((userId) => this.service.getPoliticalOfficeHolders(userId));
 
         this.searchUsers = this._wrapWithUser((userId, req) => {
@@ -264,7 +306,13 @@ class FalukantController {
             } catch (error) {
                 console.error('Controller error:', error);
                 const status = error.status && typeof error.status === 'number' ? error.status : 500;
-                res.status(status).json({ error: error.message || 'Internal error' });
+                // Wenn error ein Objekt mit status ist, alle Felder außer status übernehmen
+                if (error && typeof error === 'object' && error.status && typeof error.status === 'number') {
+                    const { status: errorStatus, ...errorData } = error;
+                    res.status(errorStatus).json({ error: error.message || errorData.message || 'Internal error', ...errorData });
+                } else {
+                    res.status(status).json({ error: error.message || 'Internal error' });
+                }
             }
         };
     }

backend/controllers/navigationController.js

@@ -50,11 +50,6 @@ const menuStructure = {
                 visible: ["all"],
                 path: "/socialnetwork/gallery"
             },
-            vocabtrainer: {
-                visible: ["all"],
-                path: "/socialnetwork/vocab",
-                children: {}
-            },
             blockedUsers: {
                 visible: ["all"],
                 path: "/socialnetwork/blocked"
@@ -183,6 +178,30 @@ const menuStructure = {
             }
         } 
     },
+    personal: {
+        visible: ["all"],
+        icon: "profile16.png",
+        children: {
+            sprachenlernen: {
+                visible: ["all"],
+                children: {
+                    vocabtrainer: {
+                        visible: ["all"],
+                        path: "/socialnetwork/vocab",
+                        showVocabLanguages: 1  // Flag für dynamische Sprachen-Liste
+                    },
+                    sprachkurse: {
+                        visible: ["all"],
+                        path: "/socialnetwork/vocab/courses"
+                    }
+                }
+            },
+            calendar: {
+                visible: ["all"],
+                path: "/personal/calendar"
+            }
+        }
+    },
     settings: {
         visible: ["all"],
         icon: "settings16.png",
@@ -377,22 +396,9 @@ class NavigationController {
             const rights = userRights.map(ur => ur.rightType?.title).filter(Boolean);
             const filteredMenu = await this.filterMenu(menuStructure, rights, age, user.id);
 
-            // Dynamisches Submenü: Treffpunkt → Vokabeltrainer → (Neue Sprache + abonnierte/angelegte)
+            // Vokabeltrainer: Sprachen werden im Frontend dynamisch geladen (wie Forum)
-            // Wichtig: "Neue Sprache" soll IMMER sichtbar sein – auch wenn die DB-Abfrage (noch) fehlschlägt.
+            // Keine children mehr, da das Menü nur 2 Ebenen unterstützt
-            if (filteredMenu?.socialnetwork?.children?.vocabtrainer) {
+            // Das Frontend lädt die Sprachen separat und zeigt sie als submenu2 an
-                const children = {
-                    newLanguage: { path: '/socialnetwork/vocab/new' },
-                };
-                try {
-                    const langs = await this.vocabService.listLanguagesForMenu(user.id);
-                    for (const l of langs) {
-                        children[`lang_${l.id}`] = { path: `/socialnetwork/vocab/${l.id}`, label: l.name };
-                    }
-                } catch (e) {
-                    console.warn('[menu] Konnte Vokabeltrainer-Sprachen nicht laden:', e?.message || e);
-                }
-                filteredMenu.socialnetwork.children.vocabtrainer.children = children;
-            }
 
             res.status(200).json(filteredMenu);
         } catch (error) {

backend/controllers/newsController.js

@@ -0,0 +1,21 @@
+import newsService from '../services/newsService.js';
+
+/**
+ * GET /api/news?counter=0&language=de&category=top
+ * counter = wievieltes News-Widget aufgerufen wird (0, 1, 2, …), damit keine doppelten Artikel.
+ */
+export default {
+    async getNews(req, res) {
+        const counter = Math.max(0, parseInt(req.query.counter, 10) || 0);
+        const language = (req.query.language || 'de').slice(0, 10);
+        const category = (req.query.category || 'top').slice(0, 50);
+
+        try {
+            const { results, nextPage } = await newsService.getNews({ counter, language, category });
+            res.json({ results, nextPage });
+        } catch (error) {
+            console.error('News getNews:', error);
+            res.status(500).json({ error: error.message || 'News konnten nicht geladen werden.' });
+        }
+    }
+};

backend/controllers/vocabController.js

@@ -9,6 +9,7 @@ class VocabController {
     this.service = new VocabService();
 
     this.listLanguages = this._wrapWithUser((userId) => this.service.listLanguages(userId));
+    this.listAllLanguages = this._wrapWithUser(() => this.service.listAllLanguages());
     this.createLanguage = this._wrapWithUser((userId, req) => this.service.createLanguage(userId, req.body), { successStatus: 201 });
     this.subscribe = this._wrapWithUser((userId, req) => this.service.subscribeByShareCode(userId, req.body), { successStatus: 201 });
     this.getLanguage = this._wrapWithUser((userId, req) => this.service.getLanguage(userId, req.params.languageId));
@@ -21,6 +22,39 @@ class VocabController {
     this.getChapter = this._wrapWithUser((userId, req) => this.service.getChapter(userId, req.params.chapterId));
     this.listChapterVocabs = this._wrapWithUser((userId, req) => this.service.listChapterVocabs(userId, req.params.chapterId));
     this.addVocabToChapter = this._wrapWithUser((userId, req) => this.service.addVocabToChapter(userId, req.params.chapterId, req.body), { successStatus: 201 });
+
+    // Courses
+    this.createCourse = this._wrapWithUser((userId, req) => this.service.createCourse(userId, req.body), { successStatus: 201 });
+    this.getCourses = this._wrapWithUser((userId, req) => this.service.getCourses(userId, req.query));
+    this.getCourse = this._wrapWithUser((userId, req) => this.service.getCourse(userId, req.params.courseId));
+    this.getCourseByShareCode = this._wrapWithUser((userId, req) => this.service.getCourseByShareCode(userId, req.body.shareCode));
+    this.updateCourse = this._wrapWithUser((userId, req) => this.service.updateCourse(userId, req.params.courseId, req.body));
+    this.deleteCourse = this._wrapWithUser((userId, req) => this.service.deleteCourse(userId, req.params.courseId));
+    
+    // Lessons
+    this.getLesson = this._wrapWithUser((userId, req) => this.service.getLesson(userId, req.params.lessonId));
+    this.addLessonToCourse = this._wrapWithUser((userId, req) => this.service.addLessonToCourse(userId, req.params.courseId, req.body), { successStatus: 201 });
+    this.updateLesson = this._wrapWithUser((userId, req) => this.service.updateLesson(userId, req.params.lessonId, req.body));
+    this.deleteLesson = this._wrapWithUser((userId, req) => this.service.deleteLesson(userId, req.params.lessonId));
+    
+    // Enrollment
+    this.enrollInCourse = this._wrapWithUser((userId, req) => this.service.enrollInCourse(userId, req.params.courseId), { successStatus: 201 });
+    this.unenrollFromCourse = this._wrapWithUser((userId, req) => this.service.unenrollFromCourse(userId, req.params.courseId));
+    this.getMyCourses = this._wrapWithUser((userId) => this.service.getMyCourses(userId));
+    
+    // Progress
+    this.getCourseProgress = this._wrapWithUser((userId, req) => this.service.getCourseProgress(userId, req.params.courseId));
+    this.updateLessonProgress = this._wrapWithUser((userId, req) => this.service.updateLessonProgress(userId, req.params.lessonId, req.body));
+    
+    // Grammar Exercises
+    this.getExerciseTypes = this._wrapWithUser((userId) => this.service.getExerciseTypes());
+    this.createGrammarExercise = this._wrapWithUser((userId, req) => this.service.createGrammarExercise(userId, req.params.lessonId, req.body), { successStatus: 201 });
+    this.getGrammarExercisesForLesson = this._wrapWithUser((userId, req) => this.service.getGrammarExercisesForLesson(userId, req.params.lessonId));
+    this.getGrammarExercise = this._wrapWithUser((userId, req) => this.service.getGrammarExercise(userId, req.params.exerciseId));
+    this.checkGrammarExerciseAnswer = this._wrapWithUser((userId, req) => this.service.checkGrammarExerciseAnswer(userId, req.params.exerciseId, req.body.answer));
+    this.getGrammarExerciseProgress = this._wrapWithUser((userId, req) => this.service.getGrammarExerciseProgress(userId, req.params.lessonId));
+    this.updateGrammarExercise = this._wrapWithUser((userId, req) => this.service.updateGrammarExercise(userId, req.params.exerciseId, req.body));
+    this.deleteGrammarExercise = this._wrapWithUser((userId, req) => this.service.deleteGrammarExercise(userId, req.params.exerciseId));
   }
 
   _wrapWithUser(fn, { successStatus = 200 } = {}) {

backend/create-performance-indexes.js

@@ -0,0 +1,159 @@
+#!/usr/bin/env node
+
+/**
+ * Script zum Erstellen von Performance-Indizes
+ * 
+ * Erstellt Indizes basierend auf der Analyse häufiger Queries:
+ * - inventory: stock_id
+ * - stock: branch_id
+ * - production: branch_id
+ * - director: employer_user_id
+ * - knowledge: (character_id, product_id) composite
+ */
+
+import './config/loadEnv.js';
+import { sequelize } from './utils/sequelize.js';
+
+async function main() {
+    try {
+        console.log('🔧 Erstelle Performance-Indizes\n');
+        console.log('='.repeat(60) + '\n');
+
+        const indexes = [
+            {
+                name: 'idx_knowledge_character_product',
+                table: 'falukant_data.knowledge',
+                columns: '(character_id, product_id)',
+                description: 'Composite Index für JOINs mit character_id UND product_id',
+                critical: true
+            },
+            {
+                name: 'idx_inventory_stock_id',
+                table: 'falukant_data.inventory',
+                columns: '(stock_id)',
+                description: 'Index für WHERE inventory.stock_id = ...',
+                critical: true
+            },
+            {
+                name: 'idx_stock_branch_id',
+                table: 'falukant_data.stock',
+                columns: '(branch_id)',
+                description: 'Index für WHERE stock.branch_id = ...',
+                critical: true
+            },
+            {
+                name: 'idx_production_branch_id',
+                table: 'falukant_data.production',
+                columns: '(branch_id)',
+                description: 'Index für WHERE production.branch_id = ...',
+                critical: true
+            },
+            {
+                name: 'idx_director_employer_user_id',
+                table: 'falukant_data.director',
+                columns: '(employer_user_id)',
+                description: 'Index für WHERE director.employer_user_id = ...',
+                critical: true
+            },
+            {
+                name: 'idx_production_start_timestamp',
+                table: 'falukant_data.production',
+                columns: '(start_timestamp)',
+                description: 'Index für WHERE production.start_timestamp <= ...',
+                critical: false
+            },
+            {
+                name: 'idx_director_last_salary_payout',
+                table: 'falukant_data.director',
+                columns: '(last_salary_payout)',
+                description: 'Index für WHERE director.last_salary_payout < ...',
+                critical: false
+            }
+        ];
+
+        console.log(`📋 ${indexes.length} Indizes werden erstellt:\n`);
+
+        let created = 0;
+        let skipped = 0;
+        let errors = 0;
+
+        for (let i = 0; i < indexes.length; i++) {
+            const idx = indexes[i];
+            const criticalMark = idx.critical ? ' ⚠️  KRITISCH' : '';
+            
+            console.log(`[${i + 1}/${indexes.length}] ${idx.name}${criticalMark}`);
+            console.log(`   Tabelle: ${idx.table}`);
+            console.log(`   Spalten: ${idx.columns}`);
+            console.log(`   Beschreibung: ${idx.description}`);
+
+            try {
+                // Prüfe ob Index bereits existiert
+                const [existing] = await sequelize.query(`
+                    SELECT EXISTS(
+                        SELECT 1 FROM pg_indexes 
+                        WHERE schemaname || '.' || tablename = '${idx.table}'
+                        AND indexname = '${idx.name}'
+                    ) as exists;
+                `);
+
+                if (existing[0].exists) {
+                    console.log(`   ⏭️  Index existiert bereits, überspringe\n`);
+                    skipped++;
+                    continue;
+                }
+
+                // Erstelle Index
+                const startTime = Date.now();
+                await sequelize.query(`
+                    CREATE INDEX IF NOT EXISTS ${idx.name}
+                    ON ${idx.table} USING btree ${idx.columns};
+                `);
+                
+                const duration = ((Date.now() - startTime) / 1000).toFixed(2);
+                console.log(`   ✅ Erstellt in ${duration}s\n`);
+                created++;
+
+            } catch (error) {
+                console.error(`   ❌ Fehler: ${error.message}\n`);
+                errors++;
+            }
+        }
+
+        console.log('='.repeat(60));
+        console.log(`✅ Zusammenfassung:`);
+        console.log(`   Erstellt: ${created}`);
+        console.log(`   Übersprungen: ${skipped}`);
+        console.log(`   Fehler: ${errors}\n`);
+
+        // ANALYZE ausführen, damit PostgreSQL die neuen Indizes berücksichtigt
+        const tablesToAnalyze = [
+            'falukant_data.knowledge',
+            'falukant_data.inventory',
+            'falukant_data.stock',
+            'falukant_data.production',
+            'falukant_data.director'
+        ];
+        if (created > 0) {
+            console.log('📊 Führe ANALYZE auf betroffenen Tabellen aus...\n');
+            for (const table of tablesToAnalyze) {
+                try {
+                    await sequelize.query(`ANALYZE ${table};`);
+                    console.log(`   ✅ ANALYZE ${table};`);
+                } catch (err) {
+                    console.log(`   ⚠️  ${table}: ${err.message}`);
+                }
+            }
+            console.log('');
+        }
+
+        await sequelize.close();
+        process.exit(0);
+
+    } catch (error) {
+        console.error('❌ Fehler:', error.message);
+        console.error(error.stack);
+        process.exit(1);
+    }
+}
+
+main();

backend/diagnose-db-performance.js

@@ -0,0 +1,479 @@
+#!/usr/bin/env node
+
+/**
+ * Umfassendes Diagnose-Script für Datenbank-Performance
+ * 
+ * Untersucht:
+ * - Verbindungsstatistiken
+ * - Langsame Queries
+ * - Tabellengrößen und Bloat
+ * - Indizes (fehlende/ungenutzte)
+ * - Vacuum/Analyze Status
+ * - Locking/Blocking
+ * - Query-Statistiken
+ */
+
+import './config/loadEnv.js';
+import { sequelize } from './utils/sequelize.js';
+
+async function main() {
+    try {
+        console.log('🔍 Datenbank-Performance-Diagnose\n');
+        console.log('='.repeat(60) + '\n');
+
+        // 1. Verbindungsstatistiken
+        await checkConnections();
+
+        // 2. Langsame Queries (wenn pg_stat_statements aktiviert ist)
+        await checkSlowQueries();
+
+        // 3. Tabellengrößen und Bloat
+        await checkTableSizes();
+
+        // 4. Indizes prüfen
+        await checkIndexes();
+
+        // 5. Vacuum/Analyze Status
+        await checkVacuumStatus();
+
+        // 6. Locking/Blocking
+        await checkLocks();
+
+        // 7. Query-Statistiken (wenn pg_stat_statements aktiviert ist)
+        await checkQueryStats();
+
+        // 8. Connection Pool Status
+        await checkConnectionPool();
+
+        console.log('\n' + '='.repeat(60));
+        console.log('✅ Diagnose abgeschlossen\n');
+
+        await sequelize.close();
+        process.exit(0);
+
+    } catch (error) {
+        console.error('❌ Fehler:', error.message);
+        console.error(error.stack);
+        process.exit(1);
+    }
+}
+
+async function checkConnections() {
+    console.log('📊 1. Verbindungsstatistiken\n');
+
+    const [connections] = await sequelize.query(`
+        SELECT 
+            count(*) as total,
+            count(*) FILTER (WHERE state = 'active') as active,
+            count(*) FILTER (WHERE state = 'idle') as idle,
+            count(*) FILTER (WHERE state = 'idle in transaction') as idle_in_transaction,
+            count(*) FILTER (WHERE wait_event_type IS NOT NULL) as waiting
+        FROM pg_stat_activity
+        WHERE datname = current_database();
+    `);
+
+    const conn = connections[0];
+    console.log(`   Gesamt: ${conn.total}`);
+    console.log(`   Aktiv: ${conn.active}`);
+    console.log(`   Idle: ${conn.idle}`);
+    console.log(`   Idle in Transaction: ${conn.idle_in_transaction}`);
+    console.log(`   Wartend: ${conn.waiting}\n`);
+
+    const [maxConn] = await sequelize.query(`
+        SELECT setting::int as max_connections 
+        FROM pg_settings 
+        WHERE name = 'max_connections';
+    `);
+
+    const usagePercent = (conn.total / maxConn[0].max_connections) * 100;
+    console.log(`   Max Connections: ${maxConn[0].max_connections}`);
+    console.log(`   Auslastung: ${usagePercent.toFixed(1)}%\n`);
+
+    if (usagePercent > 80) {
+        console.log('   ⚠️  WARNUNG: Hohe Verbindungsauslastung!\n');
+    }
+
+    // Zeige lange laufende Queries
+    const [longRunning] = await sequelize.query(`
+        SELECT 
+            pid,
+            usename,
+            application_name,
+            state,
+            now() - query_start as duration,
+            wait_event_type,
+            wait_event,
+            left(query, 100) as query_preview
+        FROM pg_stat_activity
+        WHERE datname = current_database()
+        AND state != 'idle'
+        AND now() - query_start > interval '5 seconds'
+        ORDER BY query_start ASC
+        LIMIT 10;
+    `);
+
+    if (longRunning.length > 0) {
+        console.log('   ⚠️  Lange laufende Queries (> 5 Sekunden):');
+        longRunning.forEach(q => {
+            const duration = Math.round(q.duration.total_seconds);
+            console.log(`      PID ${q.pid}: ${duration}s - ${q.query_preview}...`);
+        });
+        console.log('');
+    }
+}
+
+async function checkSlowQueries() {
+    console.log('🐌 2. Langsame Queries (pg_stat_statements)\n');
+
+    try {
+        // Prüfe ob pg_stat_statements aktiviert ist
+        const [extension] = await sequelize.query(`
+            SELECT EXISTS(
+                SELECT 1 FROM pg_extension WHERE extname = 'pg_stat_statements'
+            ) as exists;
+        `);
+
+        if (!extension[0].exists) {
+            console.log('   ℹ️  pg_stat_statements ist nicht aktiviert.');
+            console.log('   💡 Aktivieren mit: CREATE EXTENSION IF NOT EXISTS pg_stat_statements;\n');
+            return;
+        }
+
+        const [slowQueries] = await sequelize.query(`
+            SELECT 
+                left(query, 100) as query_preview,
+                calls,
+                total_exec_time,
+                mean_exec_time,
+                max_exec_time,
+                (total_exec_time / sum(total_exec_time) OVER ()) * 100 as percent_total
+            FROM pg_stat_statements
+            WHERE mean_exec_time > 100  -- Queries mit > 100ms Durchschnitt
+            ORDER BY total_exec_time DESC
+            LIMIT 10;
+        `);
+
+        if (slowQueries.length > 0) {
+            console.log('   Top 10 langsamste Queries (nach Gesamtzeit):');
+            slowQueries.forEach((q, i) => {
+                console.log(`   ${i + 1}. ${q.query_preview}...`);
+                console.log(`      Aufrufe: ${q.calls}, Durchschnitt: ${q.mean_exec_time.toFixed(2)}ms, Max: ${q.max_exec_time.toFixed(2)}ms`);
+                console.log(`      Gesamtzeit: ${q.total_exec_time.toFixed(2)}ms (${q.percent_total.toFixed(1)}%)\n`);
+            });
+        } else {
+            console.log('   ✅ Keine sehr langsamen Queries gefunden (> 100ms Durchschnitt)\n');
+        }
+    } catch (error) {
+        console.log(`   ⚠️  Fehler beim Abrufen der Query-Statistiken: ${error.message}\n`);
+    }
+}
+
+async function checkTableSizes() {
+    console.log('📦 3. Tabellengrößen und Bloat\n');
+
+    const [tableSizes] = await sequelize.query(`
+        SELECT 
+            schemaname || '.' || relname as full_table_name,
+            pg_size_pretty(pg_total_relation_size(schemaname||'.'||relname)) as total_size,
+            pg_size_pretty(pg_relation_size(schemaname||'.'||relname)) as table_size,
+            pg_size_pretty(pg_total_relation_size(schemaname||'.'||relname) - pg_relation_size(schemaname||'.'||relname)) as indexes_size,
+            n_live_tup as row_count,
+            n_dead_tup as dead_rows,
+            CASE 
+                WHEN n_live_tup > 0 THEN round((n_dead_tup::numeric / n_live_tup::numeric) * 100, 2)
+                ELSE 0
+            END as dead_row_percent,
+            last_vacuum,
+            last_autovacuum,
+            last_analyze,
+            last_autoanalyze
+        FROM pg_stat_user_tables
+        WHERE schemaname IN ('falukant_data', 'falukant_type', 'community', 'logs')
+        ORDER BY pg_total_relation_size(schemaname||'.'||relname) DESC
+        LIMIT 20;
+    `);
+
+    if (tableSizes.length > 0) {
+        console.log('   Top 20 größte Tabellen:');
+        tableSizes.forEach((t, i) => {
+            console.log(`   ${i + 1}. ${t.full_table_name}`);
+            console.log(`      Größe: ${t.total_size} (Tabelle: ${t.table_size}, Indizes: ${t.indexes_size})`);
+            console.log(`      Zeilen: ${parseInt(t.row_count).toLocaleString()}, Tote Zeilen: ${parseInt(t.dead_rows).toLocaleString()} (${t.dead_row_percent}%)`);
+            
+            if (parseFloat(t.dead_row_percent) > 20) {
+                console.log(`      ⚠️  Hoher Bloat-Anteil! Vacuum empfohlen.`);
+            }
+            
+            if (t.last_vacuum || t.last_autovacuum) {
+                const lastVacuum = t.last_vacuum || t.last_autovacuum;
+                const daysSinceVacuum = Math.floor((new Date() - new Date(lastVacuum)) / (1000 * 60 * 60 * 24));
+                if (daysSinceVacuum > 7) {
+                    console.log(`      ⚠️  Letztes Vacuum: ${daysSinceVacuum} Tage her`);
+                }
+            }
+            console.log('');
+        });
+    }
+}
+
+async function checkIndexes() {
+    console.log('🔍 4. Indizes-Analyse\n');
+
+    // Fehlende Indizes (basierend auf pg_stat_user_tables)
+    const [missingIndexes] = await sequelize.query(`
+        SELECT 
+            schemaname || '.' || relname as table_name,
+            seq_scan,
+            seq_tup_read,
+            idx_scan,
+            seq_tup_read / NULLIF(seq_scan, 0) as avg_seq_read
+        FROM pg_stat_user_tables
+        WHERE schemaname IN ('falukant_data', 'falukant_type', 'community', 'logs')
+        AND seq_scan > 1000
+        AND seq_tup_read / NULLIF(seq_scan, 0) > 1000
+        ORDER BY seq_tup_read DESC
+        LIMIT 10;
+    `);
+
+    if (missingIndexes.length > 0) {
+        console.log('   ⚠️  Tabellen mit vielen Sequential Scans (möglicherweise fehlende Indizes):');
+        missingIndexes.forEach(t => {
+            console.log(`      ${t.table_name}: ${t.seq_scan} seq scans, ${parseInt(t.seq_tup_read).toLocaleString()} Zeilen gelesen`);
+        });
+        console.log('');
+    }
+
+    // Ungenutzte Indizes
+    const [unusedIndexes] = await sequelize.query(`
+        SELECT 
+            schemaname || '.' || indexrelname as index_name,
+            schemaname || '.' || relname as table_name,
+            pg_size_pretty(pg_relation_size(indexrelid)) as index_size,
+            idx_scan as scans
+        FROM pg_stat_user_indexes
+        WHERE schemaname IN ('falukant_data', 'falukant_type', 'community', 'logs')
+        AND idx_scan = 0
+        AND pg_relation_size(indexrelid) > 1024 * 1024  -- Größer als 1MB
+        ORDER BY pg_relation_size(indexrelid) DESC
+        LIMIT 10;
+    `);
+
+    if (unusedIndexes.length > 0) {
+        console.log('   ⚠️  Ungenutzte Indizes (> 1MB, nie verwendet):');
+        unusedIndexes.forEach(idx => {
+            console.log(`      ${idx.index_name} auf ${idx.table_name}: ${idx.index_size} (0 Scans)`);
+        });
+        console.log('');
+    }
+
+    // Index Bloat
+    const [indexBloat] = await sequelize.query(`
+        SELECT 
+            schemaname || '.' || indexrelname as index_name,
+            schemaname || '.' || relname as table_name,
+            pg_size_pretty(pg_relation_size(indexrelid)) as index_size,
+            idx_scan as scans,
+            idx_tup_read as tuples_read,
+            idx_tup_fetch as tuples_fetched
+        FROM pg_stat_user_indexes
+        WHERE schemaname IN ('falukant_data', 'falukant_type', 'community', 'logs')
+        AND pg_relation_size(indexrelid) > 10 * 1024 * 1024  -- Größer als 10MB
+        ORDER BY pg_relation_size(indexrelid) DESC
+        LIMIT 10;
+    `);
+
+    if (indexBloat.length > 0) {
+        console.log('   Top 10 größte Indizes:');
+        indexBloat.forEach(idx => {
+            console.log(`      ${idx.index_name} auf ${idx.table_name}: ${idx.index_size} (${idx.scans} Scans)`);
+        });
+        console.log('');
+    }
+}
+
+async function checkVacuumStatus() {
+    console.log('🧹 5. Vacuum/Analyze Status\n');
+
+    const [vacuumStats] = await sequelize.query(`
+        SELECT 
+            schemaname || '.' || relname as table_name,
+            last_vacuum,
+            last_autovacuum,
+            last_analyze,
+            last_autoanalyze,
+            n_dead_tup,
+            n_live_tup,
+            CASE 
+                WHEN n_live_tup > 0 THEN round((n_dead_tup::numeric / n_live_tup::numeric) * 100, 2)
+                ELSE 0
+            END as dead_percent
+        FROM pg_stat_user_tables
+        WHERE schemaname IN ('falukant_data', 'falukant_type', 'community', 'logs')
+        AND (
+            (last_vacuum IS NULL AND last_autovacuum IS NULL)
+            OR (last_vacuum < now() - interval '7 days' AND last_autovacuum < now() - interval '7 days')
+            OR n_dead_tup > 10000
+        )
+        ORDER BY n_dead_tup DESC
+        LIMIT 10;
+    `);
+
+    if (vacuumStats.length > 0) {
+        console.log('   ⚠️  Tabellen, die Vacuum benötigen könnten:');
+        vacuumStats.forEach(t => {
+            const lastVacuum = t.last_vacuum || t.last_autovacuum || 'Nie';
+            const daysSince = lastVacuum !== 'Nie' 
+                ? Math.floor((new Date() - new Date(lastVacuum)) / (1000 * 60 * 60 * 24))
+                : '∞';
+            console.log(`      ${t.table_name}:`);
+            console.log(`         Tote Zeilen: ${parseInt(t.n_dead_tup).toLocaleString()} (${t.dead_percent}%)`);
+            console.log(`         Letztes Vacuum: ${lastVacuum} (${daysSince} Tage)`);
+        });
+        console.log('');
+    } else {
+        console.log('   ✅ Alle Tabellen sind aktuell gevacuumt\n');
+    }
+}
+
+async function checkLocks() {
+    console.log('🔒 6. Locking/Blocking\n');
+
+    const [locks] = await sequelize.query(`
+        SELECT 
+            blocked_locks.pid AS blocked_pid,
+            blocked_activity.usename AS blocked_user,
+            blocking_locks.pid AS blocking_pid,
+            blocking_activity.usename AS blocking_user,
+            blocked_activity.query AS blocked_statement,
+            blocking_activity.query AS blocking_statement,
+            blocked_activity.application_name AS blocked_app,
+            blocking_activity.application_name AS blocking_app
+        FROM pg_catalog.pg_locks blocked_locks
+        JOIN pg_catalog.pg_stat_activity blocked_activity ON blocked_activity.pid = blocked_locks.pid
+        JOIN pg_catalog.pg_locks blocking_locks 
+            ON blocking_locks.locktype = blocked_locks.locktype
+            AND blocking_locks.database IS NOT DISTINCT FROM blocked_locks.database
+            AND blocking_locks.relation IS NOT DISTINCT FROM blocked_locks.relation
+            AND blocking_locks.page IS NOT DISTINCT FROM blocked_locks.page
+            AND blocking_locks.tuple IS NOT DISTINCT FROM blocked_locks.tuple
+            AND blocking_locks.virtualxid IS NOT DISTINCT FROM blocked_locks.virtualxid
+            AND blocking_locks.transactionid IS NOT DISTINCT FROM blocked_locks.transactionid
+            AND blocking_locks.classid IS NOT DISTINCT FROM blocked_locks.classid
+            AND blocking_locks.objid IS NOT DISTINCT FROM blocked_locks.objid
+            AND blocking_locks.objsubid IS NOT DISTINCT FROM blocked_locks.objsubid
+            AND blocking_locks.pid != blocked_locks.pid
+        JOIN pg_catalog.pg_stat_activity blocking_activity ON blocking_activity.pid = blocking_locks.pid
+        WHERE NOT blocked_locks.granted;
+    `);
+
+    if (locks.length > 0) {
+        console.log('   ⚠️  Blockierte Queries gefunden:');
+        locks.forEach(lock => {
+            console.log(`      Blockiert: PID ${lock.blocked_pid} (${lock.blocked_user})`);
+            console.log(`      Blockiert von: PID ${lock.blocking_pid} (${lock.blocking_user})`);
+            console.log(`      Blockierte Query: ${lock.blocked_statement.substring(0, 100)}...`);
+            console.log(`      Blockierende Query: ${lock.blocking_statement.substring(0, 100)}...\n`);
+        });
+    } else {
+        console.log('   ✅ Keine blockierten Queries gefunden\n');
+    }
+
+    // Zeige alle aktiven Locks
+    const [allLocks] = await sequelize.query(`
+        SELECT 
+            locktype,
+            relation::regclass as relation,
+            mode,
+            granted,
+            pid
+        FROM pg_locks
+        WHERE relation IS NOT NULL
+        AND NOT granted
+        LIMIT 10;
+    `);
+
+    if (allLocks.length > 0) {
+        console.log('   ⚠️  Wartende Locks:');
+        allLocks.forEach(lock => {
+            console.log(`      ${lock.locktype} auf ${lock.relation}: ${lock.mode} (PID ${lock.pid})`);
+        });
+        console.log('');
+    }
+}
+
+async function checkQueryStats() {
+    console.log('📈 7. Query-Statistiken\n');
+
+    try {
+        const [extension] = await sequelize.query(`
+            SELECT EXISTS(
+                SELECT 1 FROM pg_extension WHERE extname = 'pg_stat_statements'
+            ) as exists;
+        `);
+
+        if (!extension[0].exists) {
+            console.log('   ℹ️  pg_stat_statements ist nicht aktiviert.\n');
+            return;
+        }
+
+        const [topQueries] = await sequelize.query(`
+            SELECT 
+                left(query, 80) as query_preview,
+                calls,
+                total_exec_time,
+                mean_exec_time,
+                (100 * total_exec_time / sum(total_exec_time) OVER ()) as percent_total
+            FROM pg_stat_statements
+            WHERE query NOT LIKE '%pg_stat_statements%'
+            ORDER BY calls DESC
+            LIMIT 5;
+        `);
+
+        if (topQueries.length > 0) {
+            console.log('   Top 5 häufigste Queries:');
+            topQueries.forEach((q, i) => {
+                console.log(`   ${i + 1}. ${q.query_preview}...`);
+                console.log(`      Aufrufe: ${parseInt(q.calls).toLocaleString()}, Durchschnitt: ${q.mean_exec_time.toFixed(2)}ms`);
+            });
+            console.log('');
+        }
+    } catch (error) {
+        console.log(`   ⚠️  Fehler: ${error.message}\n`);
+    }
+}
+
+async function checkConnectionPool() {
+    console.log('🏊 8. Connection Pool Status\n');
+
+    try {
+        // Hole Pool-Konfiguration aus Sequelize Config
+        const config = sequelize.config;
+        const poolConfig = config.pool || {};
+        
+        console.log(`   Pool-Konfiguration:`);
+        console.log(`      Max: ${poolConfig.max || 'N/A'}`);
+        console.log(`      Min: ${poolConfig.min || 'N/A'}`);
+        console.log(`      Acquire Timeout: ${poolConfig.acquire || 'N/A'}ms`);
+        console.log(`      Idle Timeout: ${poolConfig.idle || 'N/A'}ms`);
+        console.log(`      Evict Interval: ${poolConfig.evict || 'N/A'}ms\n`);
+
+        // Versuche Pool-Status zu bekommen
+        const pool = sequelize.connectionManager.pool;
+        if (pool) {
+            const poolSize = pool.size || 0;
+            const poolUsed = pool.used || 0;
+            const poolPending = pool.pending || 0;
+            
+            console.log(`   Pool-Status:`);
+            console.log(`      Größe: ${poolSize}`);
+            console.log(`      Verwendet: ${poolUsed}`);
+            console.log(`      Wartend: ${poolPending}\n`);
+        } else {
+            console.log(`   ℹ️  Pool-Objekt nicht verfügbar\n`);
+        }
+    } catch (error) {
+        console.log(`   ⚠️  Fehler beim Abrufen der Pool-Informationen: ${error.message}\n`);
+    }
+}
+
+main();

backend/migrations/20260115000000-add-vocab-courses.cjs

@@ -0,0 +1,132 @@
+/* eslint-disable */
+'use strict';
+
+module.exports = {
+  async up(queryInterface) {
+    // Kurs-Tabelle
+    await queryInterface.sequelize.query(`
+      CREATE TABLE IF NOT EXISTS community.vocab_course (
+        id SERIAL PRIMARY KEY,
+        owner_user_id INTEGER NOT NULL,
+        title TEXT NOT NULL,
+        description TEXT,
+        language_id INTEGER NOT NULL,
+        difficulty_level INTEGER DEFAULT 1,
+        is_public BOOLEAN DEFAULT false,
+        share_code TEXT,
+        created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+        updated_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+        CONSTRAINT vocab_course_owner_fk
+          FOREIGN KEY (owner_user_id)
+          REFERENCES community."user"(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_course_language_fk
+          FOREIGN KEY (language_id)
+          REFERENCES community.vocab_language(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_course_share_code_uniq UNIQUE (share_code)
+      );
+    `);
+
+    // Lektionen innerhalb eines Kurses
+    await queryInterface.sequelize.query(`
+      CREATE TABLE IF NOT EXISTS community.vocab_course_lesson (
+        id SERIAL PRIMARY KEY,
+        course_id INTEGER NOT NULL,
+        chapter_id INTEGER NOT NULL,
+        lesson_number INTEGER NOT NULL,
+        title TEXT NOT NULL,
+        description TEXT,
+        created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+        CONSTRAINT vocab_course_lesson_course_fk
+          FOREIGN KEY (course_id)
+          REFERENCES community.vocab_course(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_course_lesson_chapter_fk
+          FOREIGN KEY (chapter_id)
+          REFERENCES community.vocab_chapter(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_course_lesson_unique UNIQUE (course_id, lesson_number)
+      );
+    `);
+
+    // Einschreibungen in Kurse
+    await queryInterface.sequelize.query(`
+      CREATE TABLE IF NOT EXISTS community.vocab_course_enrollment (
+        id SERIAL PRIMARY KEY,
+        user_id INTEGER NOT NULL,
+        course_id INTEGER NOT NULL,
+        enrolled_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+        CONSTRAINT vocab_course_enrollment_user_fk
+          FOREIGN KEY (user_id)
+          REFERENCES community."user"(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_course_enrollment_course_fk
+          FOREIGN KEY (course_id)
+          REFERENCES community.vocab_course(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_course_enrollment_unique UNIQUE (user_id, course_id)
+      );
+    `);
+
+    // Fortschritt pro User und Lektion
+    await queryInterface.sequelize.query(`
+      CREATE TABLE IF NOT EXISTS community.vocab_course_progress (
+        id SERIAL PRIMARY KEY,
+        user_id INTEGER NOT NULL,
+        course_id INTEGER NOT NULL,
+        lesson_id INTEGER NOT NULL,
+        completed BOOLEAN DEFAULT false,
+        score INTEGER DEFAULT 0,
+        last_accessed_at TIMESTAMP WITHOUT TIME ZONE,
+        completed_at TIMESTAMP WITHOUT TIME ZONE,
+        CONSTRAINT vocab_course_progress_user_fk
+          FOREIGN KEY (user_id)
+          REFERENCES community."user"(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_course_progress_course_fk
+          FOREIGN KEY (course_id)
+          REFERENCES community.vocab_course(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_course_progress_lesson_fk
+          FOREIGN KEY (lesson_id)
+          REFERENCES community.vocab_course_lesson(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_course_progress_unique UNIQUE (user_id, lesson_id)
+      );
+    `);
+
+    // Indizes
+    await queryInterface.sequelize.query(`
+      CREATE INDEX IF NOT EXISTS vocab_course_owner_idx
+        ON community.vocab_course(owner_user_id);
+      CREATE INDEX IF NOT EXISTS vocab_course_language_idx
+        ON community.vocab_course(language_id);
+      CREATE INDEX IF NOT EXISTS vocab_course_public_idx
+        ON community.vocab_course(is_public);
+      CREATE INDEX IF NOT EXISTS vocab_course_lesson_course_idx
+        ON community.vocab_course_lesson(course_id);
+      CREATE INDEX IF NOT EXISTS vocab_course_lesson_chapter_idx
+        ON community.vocab_course_lesson(chapter_id);
+      CREATE INDEX IF NOT EXISTS vocab_course_enrollment_user_idx
+        ON community.vocab_course_enrollment(user_id);
+      CREATE INDEX IF NOT EXISTS vocab_course_enrollment_course_idx
+        ON community.vocab_course_enrollment(course_id);
+      CREATE INDEX IF NOT EXISTS vocab_course_progress_user_idx
+        ON community.vocab_course_progress(user_id);
+      CREATE INDEX IF NOT EXISTS vocab_course_progress_course_idx
+        ON community.vocab_course_progress(course_id);
+      CREATE INDEX IF NOT EXISTS vocab_course_progress_lesson_idx
+        ON community.vocab_course_progress(lesson_id);
+    `);
+  },
+
+  async down(queryInterface) {
+    await queryInterface.sequelize.query(`
+      DROP TABLE IF EXISTS community.vocab_course_progress CASCADE;
+      DROP TABLE IF EXISTS community.vocab_course_enrollment CASCADE;
+      DROP TABLE IF EXISTS community.vocab_course_lesson CASCADE;
+      DROP TABLE IF EXISTS community.vocab_course CASCADE;
+    `);
+  }
+};

backend/migrations/20260115000001-add-vocab-grammar-exercises.cjs

@@ -0,0 +1,101 @@
+/* eslint-disable */
+'use strict';
+
+module.exports = {
+  async up(queryInterface) {
+    // Grammatik-Übungstypen (z.B. "gap_fill", "multiple_choice", "sentence_building", "transformation")
+    await queryInterface.sequelize.query(`
+      CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise_type (
+        id SERIAL PRIMARY KEY,
+        name TEXT NOT NULL UNIQUE,
+        description TEXT,
+        created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW()
+      );
+    `);
+
+    // Grammatik-Übungen (verknüpft mit Lektionen)
+    await queryInterface.sequelize.query(`
+      CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise (
+        id SERIAL PRIMARY KEY,
+        lesson_id INTEGER NOT NULL,
+        exercise_type_id INTEGER NOT NULL,
+        exercise_number INTEGER NOT NULL,
+        title TEXT NOT NULL,
+        instruction TEXT,
+        question_data JSONB NOT NULL,
+        answer_data JSONB NOT NULL,
+        explanation TEXT,
+        created_by_user_id INTEGER NOT NULL,
+        created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+        CONSTRAINT vocab_grammar_exercise_lesson_fk
+          FOREIGN KEY (lesson_id)
+          REFERENCES community.vocab_course_lesson(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_grammar_exercise_type_fk
+          FOREIGN KEY (exercise_type_id)
+          REFERENCES community.vocab_grammar_exercise_type(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_grammar_exercise_creator_fk
+          FOREIGN KEY (created_by_user_id)
+          REFERENCES community."user"(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_grammar_exercise_unique UNIQUE (lesson_id, exercise_number)
+      );
+    `);
+
+    // Fortschritt für Grammatik-Übungen
+    await queryInterface.sequelize.query(`
+      CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise_progress (
+        id SERIAL PRIMARY KEY,
+        user_id INTEGER NOT NULL,
+        exercise_id INTEGER NOT NULL,
+        attempts INTEGER DEFAULT 0,
+        correct_attempts INTEGER DEFAULT 0,
+        last_attempt_at TIMESTAMP WITHOUT TIME ZONE,
+        completed BOOLEAN DEFAULT false,
+        completed_at TIMESTAMP WITHOUT TIME ZONE,
+        CONSTRAINT vocab_grammar_exercise_progress_user_fk
+          FOREIGN KEY (user_id)
+          REFERENCES community."user"(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_grammar_exercise_progress_exercise_fk
+          FOREIGN KEY (exercise_id)
+          REFERENCES community.vocab_grammar_exercise(id)
+          ON DELETE CASCADE,
+        CONSTRAINT vocab_grammar_exercise_progress_unique UNIQUE (user_id, exercise_id)
+      );
+    `);
+
+    // Indizes
+    await queryInterface.sequelize.query(`
+      CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_lesson_idx
+        ON community.vocab_grammar_exercise(lesson_id);
+      CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_type_idx
+        ON community.vocab_grammar_exercise(exercise_type_id);
+      CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_progress_user_idx
+        ON community.vocab_grammar_exercise_progress(user_id);
+      CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_progress_exercise_idx
+        ON community.vocab_grammar_exercise_progress(exercise_id);
+    `);
+
+    // Standard-Übungstypen einfügen
+    await queryInterface.sequelize.query(`
+      INSERT INTO community.vocab_grammar_exercise_type (name, description) VALUES
+        ('gap_fill', 'Lückentext-Übung'),
+        ('multiple_choice', 'Multiple-Choice-Fragen'),
+        ('sentence_building', 'Satzbau-Übung'),
+        ('transformation', 'Satzumformung'),
+        ('conjugation', 'Konjugations-Übung'),
+        ('declension', 'Deklinations-Übung')
+      ON CONFLICT (name) DO NOTHING;
+    `);
+  },
+
+  async down(queryInterface) {
+    await queryInterface.sequelize.query(`
+      DROP TABLE IF EXISTS community.vocab_grammar_exercise_progress CASCADE;
+      DROP TABLE IF EXISTS community.vocab_grammar_exercise CASCADE;
+      DROP TABLE IF EXISTS community.vocab_grammar_exercise_type CASCADE;
+    `);
+  }
+};

backend/migrations/20260115000002-add-course-structure.cjs

@@ -0,0 +1,47 @@
+/* eslint-disable */
+'use strict';
+
+module.exports = {
+  async up(queryInterface) {
+    // chapter_id optional machen (nicht alle Lektionen brauchen ein Kapitel)
+    await queryInterface.sequelize.query(`
+      ALTER TABLE community.vocab_course_lesson
+      ALTER COLUMN chapter_id DROP NOT NULL;
+    `);
+
+    // Kurs-Wochen/Module hinzufügen
+    await queryInterface.sequelize.query(`
+      ALTER TABLE community.vocab_course_lesson
+      ADD COLUMN IF NOT EXISTS week_number INTEGER,
+      ADD COLUMN IF NOT EXISTS day_number INTEGER,
+      ADD COLUMN IF NOT EXISTS lesson_type TEXT DEFAULT 'vocab',
+      ADD COLUMN IF NOT EXISTS audio_url TEXT,
+      ADD COLUMN IF NOT EXISTS cultural_notes TEXT;
+    `);
+
+    // Indizes für Wochen/Tage
+    await queryInterface.sequelize.query(`
+      CREATE INDEX IF NOT EXISTS vocab_course_lesson_week_idx
+        ON community.vocab_course_lesson(course_id, week_number);
+      CREATE INDEX IF NOT EXISTS vocab_course_lesson_type_idx
+        ON community.vocab_course_lesson(lesson_type);
+    `);
+
+    // Kommentar hinzufügen für lesson_type
+    await queryInterface.sequelize.query(`
+      COMMENT ON COLUMN community.vocab_course_lesson.lesson_type IS 
+        'Type: vocab, grammar, conversation, culture, review';
+    `);
+  },
+
+  async down(queryInterface) {
+    await queryInterface.sequelize.query(`
+      ALTER TABLE community.vocab_course_lesson
+      DROP COLUMN IF EXISTS week_number,
+      DROP COLUMN IF EXISTS day_number,
+      DROP COLUMN IF EXISTS lesson_type,
+      DROP COLUMN IF EXISTS audio_url,
+      DROP COLUMN IF EXISTS cultural_notes;
+    `);
+  }
+};

backend/migrations/20260115000003-add-course-learning-goals.cjs

@@ -0,0 +1,33 @@
+/* eslint-disable */
+'use strict';
+
+module.exports = {
+  async up(queryInterface) {
+    // Lernziele für Lektionen
+    await queryInterface.sequelize.query(`
+      ALTER TABLE community.vocab_course_lesson
+      ADD COLUMN IF NOT EXISTS target_minutes INTEGER,
+      ADD COLUMN IF NOT EXISTS target_score_percent INTEGER DEFAULT 80,
+      ADD COLUMN IF NOT EXISTS requires_review BOOLEAN DEFAULT false;
+    `);
+
+    // Kommentare hinzufügen
+    await queryInterface.sequelize.query(`
+      COMMENT ON COLUMN community.vocab_course_lesson.target_minutes IS 
+        'Zielzeit in Minuten für diese Lektion';
+      COMMENT ON COLUMN community.vocab_course_lesson.target_score_percent IS 
+        'Mindestpunktzahl in Prozent zum Abschluss (z.B. 80)';
+      COMMENT ON COLUMN community.vocab_course_lesson.requires_review IS 
+        'Muss diese Lektion wiederholt werden, wenn Ziel nicht erreicht?';
+    `);
+  },
+
+  async down(queryInterface) {
+    await queryInterface.sequelize.query(`
+      ALTER TABLE community.vocab_course_lesson
+      DROP COLUMN IF EXISTS target_minutes,
+      DROP COLUMN IF EXISTS target_score_percent,
+      DROP COLUMN IF EXISTS requires_review;
+    `);
+  }
+};

backend/models/associations.js

@@ -5,6 +5,7 @@ import ChatUser from './chat/user.js';
 import Room from './chat/room.js';
 import User from './community/user.js';
 import UserParam from './community/user_param.js';
+import UserDashboard from './community/user_dashboard.js';
 import UserParamType from './type/user_param.js';
 import UserRightType from './type/user_right.js';
 import UserRight from './community/user_right.js';
@@ -93,6 +94,10 @@ import PoliticalOfficeRequirement from './falukant/predefine/political_office_pr
 import PoliticalOfficePrerequisite from './falukant/predefine/political_office_prerequisite.js';
 import PoliticalOfficeHistory from './falukant/log/political_office_history.js';
 import ElectionHistory from './falukant/log/election_history.js';
+import ChurchOfficeType from './falukant/type/church_office_type.js';
+import ChurchOfficeRequirement from './falukant/predefine/church_office_requirement.js';
+import ChurchOffice from './falukant/data/church_office.js';
+import ChurchApplication from './falukant/data/church_application.js';
 import Underground from './falukant/data/underground.js';
 import UndergroundType from './falukant/type/underground.js';
 import VehicleType from './falukant/type/vehicle.js';
@@ -102,8 +107,17 @@ import RegionDistance from './falukant/data/region_distance.js';
 import WeatherType from './falukant/type/weather.js';
 import Weather from './falukant/data/weather.js';
 import ProductWeatherEffect from './falukant/type/product_weather_effect.js';
+import ProductPriceHistory from './falukant/log/product_price_history.js';
 import Blog from './community/blog.js';
 import BlogPost from './community/blog_post.js';
+import VocabCourse from './community/vocab_course.js';
+import VocabCourseLesson from './community/vocab_course_lesson.js';
+import VocabCourseEnrollment from './community/vocab_course_enrollment.js';
+import VocabCourseProgress from './community/vocab_course_progress.js';
+import VocabGrammarExerciseType from './community/vocab_grammar_exercise_type.js';
+import VocabGrammarExercise from './community/vocab_grammar_exercise.js';
+import VocabGrammarExerciseProgress from './community/vocab_grammar_exercise_progress.js';
+import CalendarEvent from './community/calendar_event.js';
 import Campaign from './match3/campaign.js';
 import Match3Level from './match3/level.js';
 import Objective from './match3/objective.js';
@@ -155,6 +169,9 @@ export default function setupAssociations() {
   User.hasMany(UserParam, { foreignKey: 'userId', as: 'user_params' });
   UserParam.belongsTo(User, { foreignKey: 'userId', as: 'user' });
 
+  User.hasOne(UserDashboard, { foreignKey: 'userId', as: 'dashboard' });
+  UserDashboard.belongsTo(User, { foreignKey: 'userId', as: 'user' });
+
   UserParamValue.belongsTo(UserParamType, { foreignKey: 'userParamTypeId', as: 'user_param_value_type' });
   UserParamType.hasMany(UserParamValue, { foreignKey: 'userParamTypeId', as: 'user_param_type_value' });
 
@@ -405,6 +422,13 @@ export default function setupAssociations() {
   DaySell.belongsTo(FalukantUser, { foreignKey: 'sellerId', as: 'user' });
   FalukantUser.hasMany(DaySell, { foreignKey: 'sellerId', as: 'daySells' });
 
+  // Produkt-Preishistorie (Zeitreihe für Preiskurven)
+  ProductPriceHistory.belongsTo(ProductType, { foreignKey: 'productId', as: 'productType' });
+  ProductType.hasMany(ProductPriceHistory, { foreignKey: 'productId', as: 'priceHistory' });
+
+  ProductPriceHistory.belongsTo(RegionData, { foreignKey: 'regionId', as: 'region' });
+  RegionData.hasMany(ProductPriceHistory, { foreignKey: 'regionId', as: 'productPriceHistory' });
+
   Notification.belongsTo(FalukantUser, { foreignKey: 'userId', as: 'user' });
   FalukantUser.hasMany(Notification, { foreignKey: 'userId', as: 'notifications' });
 
@@ -558,14 +582,14 @@ export default function setupAssociations() {
 
   Party.belongsToMany(TitleOfNobility, {
     through: PartyInvitedNobility,
-    foreignKey: 'party_id',
+    foreignKey: 'partyId',
-    otherKey: 'title_of_nobility_id',
+    otherKey: 'titleOfNobilityId',
     as: 'invitedNobilities',
   });
   TitleOfNobility.belongsToMany(Party, {
     through: PartyInvitedNobility,
-    foreignKey: 'title_of_nobility_id',
+    foreignKey: 'titleOfNobilityId',
-    otherKey: 'party_id',
+    otherKey: 'partyId',
     as: 'partiesInvitedTo',
   });
 
@@ -859,6 +883,96 @@ export default function setupAssociations() {
   }
   );
 
+  // — Church Offices —
+
+  // Requirements for church office
+  ChurchOfficeRequirement.belongsTo(ChurchOfficeType, {
+    foreignKey: 'officeTypeId',
+    as: 'officeType'
+  });
+  ChurchOfficeType.hasMany(ChurchOfficeRequirement, {
+    foreignKey: 'officeTypeId',
+    as: 'requirements'
+  });
+
+  // Prerequisite office type
+  ChurchOfficeRequirement.belongsTo(ChurchOfficeType, {
+    foreignKey: 'prerequisiteOfficeTypeId',
+    as: 'prerequisiteOfficeType'
+  });
+
+  // Actual church office holdings
+  ChurchOffice.belongsTo(ChurchOfficeType, {
+    foreignKey: 'officeTypeId',
+    as: 'type'
+  });
+  ChurchOfficeType.hasMany(ChurchOffice, {
+    foreignKey: 'officeTypeId',
+    as: 'offices'
+  });
+
+  ChurchOffice.belongsTo(FalukantCharacter, {
+    foreignKey: 'characterId',
+    as: 'holder'
+  });
+  FalukantCharacter.hasOne(ChurchOffice, {
+    foreignKey: 'characterId',
+    as: 'heldChurchOffice'
+  });
+
+  // Supervisor relationship
+  ChurchOffice.belongsTo(FalukantCharacter, {
+    foreignKey: 'supervisorId',
+    as: 'supervisor'
+  });
+
+  // Region relationship
+  ChurchOffice.belongsTo(RegionData, {
+    foreignKey: 'regionId',
+    as: 'region'
+  });
+  RegionData.hasMany(ChurchOffice, {
+    foreignKey: 'regionId',
+    as: 'churchOffices'
+  });
+
+  // Applications for church office
+  ChurchApplication.belongsTo(ChurchOfficeType, {
+    foreignKey: 'officeTypeId',
+    as: 'officeType'
+  });
+  ChurchOfficeType.hasMany(ChurchApplication, {
+    foreignKey: 'officeTypeId',
+    as: 'applications'
+  });
+
+  ChurchApplication.belongsTo(FalukantCharacter, {
+    foreignKey: 'characterId',
+    as: 'applicant'
+  });
+  FalukantCharacter.hasMany(ChurchApplication, {
+    foreignKey: 'characterId',
+    as: 'churchApplications'
+  });
+
+  ChurchApplication.belongsTo(FalukantCharacter, {
+    foreignKey: 'supervisorId',
+    as: 'supervisor'
+  });
+  FalukantCharacter.hasMany(ChurchApplication, {
+    foreignKey: 'supervisorId',
+    as: 'supervisedApplications'
+  });
+
+  ChurchApplication.belongsTo(RegionData, {
+    foreignKey: 'regionId',
+    as: 'region'
+  });
+  RegionData.hasMany(ChurchApplication, {
+    foreignKey: 'regionId',
+    as: 'churchApplications'
+  });
+
   Underground.belongsTo(UndergroundType, {
     foreignKey: 'undergroundTypeId',
     as: 'undergroundType'
@@ -941,5 +1055,41 @@ export default function setupAssociations() {
   
   TaxiHighscore.belongsTo(TaxiMap, { foreignKey: 'mapId', as: 'map' });
   TaxiMap.hasMany(TaxiHighscore, { foreignKey: 'mapId', as: 'highscores' });
+
+  // Vocab Course associations
+  VocabCourse.belongsTo(User, { foreignKey: 'ownerUserId', as: 'owner' });
+  User.hasMany(VocabCourse, { foreignKey: 'ownerUserId', as: 'ownedCourses' });
+  
+  VocabCourseLesson.belongsTo(VocabCourse, { foreignKey: 'courseId', as: 'course' });
+  VocabCourse.hasMany(VocabCourseLesson, { foreignKey: 'courseId', as: 'lessons' });
+  
+  VocabCourseEnrollment.belongsTo(User, { foreignKey: 'userId', as: 'user' });
+  User.hasMany(VocabCourseEnrollment, { foreignKey: 'userId', as: 'courseEnrollments' });
+  VocabCourseEnrollment.belongsTo(VocabCourse, { foreignKey: 'courseId', as: 'course' });
+  VocabCourse.hasMany(VocabCourseEnrollment, { foreignKey: 'courseId', as: 'enrollments' });
+  
+  VocabCourseProgress.belongsTo(User, { foreignKey: 'userId', as: 'user' });
+  User.hasMany(VocabCourseProgress, { foreignKey: 'userId', as: 'courseProgress' });
+  VocabCourseProgress.belongsTo(VocabCourse, { foreignKey: 'courseId', as: 'course' });
+  VocabCourse.hasMany(VocabCourseProgress, { foreignKey: 'courseId', as: 'progress' });
+  VocabCourseProgress.belongsTo(VocabCourseLesson, { foreignKey: 'lessonId', as: 'lesson' });
+  VocabCourseLesson.hasMany(VocabCourseProgress, { foreignKey: 'lessonId', as: 'progress' });
+
+  // Grammar Exercise associations
+  VocabGrammarExercise.belongsTo(VocabCourseLesson, { foreignKey: 'lessonId', as: 'lesson' });
+  VocabCourseLesson.hasMany(VocabGrammarExercise, { foreignKey: 'lessonId', as: 'grammarExercises' });
+  VocabGrammarExercise.belongsTo(VocabGrammarExerciseType, { foreignKey: 'exerciseTypeId', as: 'exerciseType' });
+  VocabGrammarExerciseType.hasMany(VocabGrammarExercise, { foreignKey: 'exerciseTypeId', as: 'exercises' });
+  VocabGrammarExercise.belongsTo(User, { foreignKey: 'createdByUserId', as: 'creator' });
+  User.hasMany(VocabGrammarExercise, { foreignKey: 'createdByUserId', as: 'createdGrammarExercises' });
+  
+  VocabGrammarExerciseProgress.belongsTo(User, { foreignKey: 'userId', as: 'user' });
+  User.hasMany(VocabGrammarExerciseProgress, { foreignKey: 'userId', as: 'grammarExerciseProgress' });
+  VocabGrammarExerciseProgress.belongsTo(VocabGrammarExercise, { foreignKey: 'exerciseId', as: 'exercise' });
+  VocabGrammarExercise.hasMany(VocabGrammarExerciseProgress, { foreignKey: 'exerciseId', as: 'progress' });
+  
+  // Calendar associations
+  CalendarEvent.belongsTo(User, { foreignKey: 'userId', as: 'user' });
+  User.hasMany(CalendarEvent, { foreignKey: 'userId', as: 'calendarEvents' });
 }
 

backend/models/community/calendar_event.js

@@ -0,0 +1,86 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../utils/sequelize.js';
+
+class CalendarEvent extends Model { }
+
+CalendarEvent.init({
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+    },
+    userId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        references: {
+            model: 'user',
+            key: 'id'
+        }
+    },
+    title: {
+        type: DataTypes.STRING(255),
+        allowNull: false
+    },
+    description: {
+        type: DataTypes.TEXT,
+        allowNull: true
+    },
+    categoryId: {
+        type: DataTypes.STRING(50),
+        allowNull: false,
+        defaultValue: 'personal',
+        comment: 'Category key: personal, work, family, health, birthday, holiday, reminder, other'
+    },
+    startDate: {
+        type: DataTypes.DATEONLY,
+        allowNull: false
+    },
+    endDate: {
+        type: DataTypes.DATEONLY,
+        allowNull: true,
+        comment: 'End date for multi-day events, null means same as startDate'
+    },
+    startTime: {
+        type: DataTypes.TIME,
+        allowNull: true,
+        comment: 'Start time, null for all-day events'
+    },
+    endTime: {
+        type: DataTypes.TIME,
+        allowNull: true,
+        comment: 'End time, null for all-day events'
+    },
+    allDay: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+        defaultValue: false
+    },
+    createdAt: {
+        type: DataTypes.DATE,
+        defaultValue: DataTypes.NOW
+    },
+    updatedAt: {
+        type: DataTypes.DATE,
+        defaultValue: DataTypes.NOW
+    }
+}, {
+    sequelize,
+    modelName: 'CalendarEvent',
+    tableName: 'calendar_event',
+    schema: 'community',
+    timestamps: true,
+    underscored: true,
+    indexes: [
+        {
+            fields: ['user_id']
+        },
+        {
+            fields: ['user_id', 'start_date']
+        },
+        {
+            fields: ['user_id', 'start_date', 'end_date']
+        }
+    ]
+});
+
+export default CalendarEvent;

backend/models/community/user_dashboard.js

@@ -0,0 +1,24 @@
+import { sequelize } from '../../utils/sequelize.js';
+import { DataTypes } from 'sequelize';
+import User from './user.js';
+
+const UserDashboard = sequelize.define('user_dashboard', {
+    userId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        primaryKey: true,
+        references: { model: User, key: 'id' }
+    },
+    config: {
+        type: DataTypes.JSONB,
+        allowNull: false,
+        defaultValue: { widgets: [] }
+    }
+}, {
+    tableName: 'user_dashboard',
+    schema: 'community',
+    underscored: true,
+    timestamps: false
+});
+
+export default UserDashboard;

backend/models/community/vocab_course.js

@@ -0,0 +1,75 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../utils/sequelize.js';
+
+class VocabCourse extends Model {}
+
+VocabCourse.init({
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+    },
+    ownerUserId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'owner_user_id'
+    },
+    title: {
+        type: DataTypes.TEXT,
+        allowNull: false
+    },
+    description: {
+        type: DataTypes.TEXT,
+        allowNull: true
+    },
+    languageId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'language_id'
+    },
+    nativeLanguageId: {
+        type: DataTypes.INTEGER,
+        allowNull: true,
+        field: 'native_language_id',
+        comment: 'Muttersprache des Lerners (z.B. Deutsch, Englisch). NULL bedeutet "für alle Sprachen".'
+    },
+    difficultyLevel: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        defaultValue: 1,
+        field: 'difficulty_level'
+    },
+    isPublic: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+        defaultValue: false,
+        field: 'is_public'
+    },
+    shareCode: {
+        type: DataTypes.TEXT,
+        allowNull: true,
+        unique: true,
+        field: 'share_code'
+    },
+    createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false,
+        defaultValue: DataTypes.NOW,
+        field: 'created_at'
+    },
+    updatedAt: {
+        type: DataTypes.DATE,
+        allowNull: false,
+        defaultValue: DataTypes.NOW,
+        field: 'updated_at'
+    }
+}, {
+    sequelize,
+    modelName: 'VocabCourse',
+    tableName: 'vocab_course',
+    schema: 'community',
+    timestamps: true,
+    underscored: true
+});
+
+export default VocabCourse;

backend/models/community/vocab_course_enrollment.js

@@ -0,0 +1,37 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../utils/sequelize.js';
+
+class VocabCourseEnrollment extends Model {}
+
+VocabCourseEnrollment.init({
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+    },
+    userId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'user_id'
+    },
+    courseId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'course_id'
+    },
+    enrolledAt: {
+        type: DataTypes.DATE,
+        allowNull: false,
+        defaultValue: DataTypes.NOW,
+        field: 'enrolled_at'
+    }
+}, {
+    sequelize,
+    modelName: 'VocabCourseEnrollment',
+    tableName: 'vocab_course_enrollment',
+    schema: 'community',
+    timestamps: false,
+    underscored: true
+});
+
+export default VocabCourseEnrollment;

backend/models/community/vocab_course_lesson.js

@@ -0,0 +1,93 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../utils/sequelize.js';
+
+class VocabCourseLesson extends Model {}
+
+VocabCourseLesson.init({
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+    },
+    courseId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'course_id'
+    },
+    chapterId: {
+        type: DataTypes.INTEGER,
+        allowNull: true,
+        field: 'chapter_id'
+    },
+    lessonNumber: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'lesson_number'
+    },
+    title: {
+        type: DataTypes.TEXT,
+        allowNull: false
+    },
+    description: {
+        type: DataTypes.TEXT,
+        allowNull: true
+    },
+    weekNumber: {
+        type: DataTypes.INTEGER,
+        allowNull: true,
+        field: 'week_number'
+    },
+    dayNumber: {
+        type: DataTypes.INTEGER,
+        allowNull: true,
+        field: 'day_number'
+    },
+    lessonType: {
+        type: DataTypes.TEXT,
+        allowNull: false,
+        defaultValue: 'vocab',
+        field: 'lesson_type'
+    },
+    audioUrl: {
+        type: DataTypes.TEXT,
+        allowNull: true,
+        field: 'audio_url'
+    },
+    culturalNotes: {
+        type: DataTypes.TEXT,
+        allowNull: true,
+        field: 'cultural_notes'
+    },
+    targetMinutes: {
+        type: DataTypes.INTEGER,
+        allowNull: true,
+        field: 'target_minutes'
+    },
+    targetScorePercent: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        defaultValue: 80,
+        field: 'target_score_percent'
+    },
+    requiresReview: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+        defaultValue: false,
+        field: 'requires_review'
+    },
+    createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false,
+        defaultValue: DataTypes.NOW,
+        field: 'created_at'
+    }
+}, {
+    sequelize,
+    modelName: 'VocabCourseLesson',
+    tableName: 'vocab_course_lesson',
+    schema: 'community',
+    timestamps: false,
+    underscored: true
+});
+
+export default VocabCourseLesson;

backend/models/community/vocab_course_progress.js

@@ -0,0 +1,56 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../utils/sequelize.js';
+
+class VocabCourseProgress extends Model {}
+
+VocabCourseProgress.init({
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+    },
+    userId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'user_id'
+    },
+    courseId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'course_id'
+    },
+    lessonId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'lesson_id'
+    },
+    completed: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+        defaultValue: false
+    },
+    score: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        defaultValue: 0
+    },
+    lastAccessedAt: {
+        type: DataTypes.DATE,
+        allowNull: true,
+        field: 'last_accessed_at'
+    },
+    completedAt: {
+        type: DataTypes.DATE,
+        allowNull: true,
+        field: 'completed_at'
+    }
+}, {
+    sequelize,
+    modelName: 'VocabCourseProgress',
+    tableName: 'vocab_course_progress',
+    schema: 'community',
+    timestamps: false,
+    underscored: true
+});
+
+export default VocabCourseProgress;

backend/models/community/vocab_grammar_exercise.js

@@ -0,0 +1,69 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../utils/sequelize.js';
+
+class VocabGrammarExercise extends Model {}
+
+VocabGrammarExercise.init({
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+    },
+    lessonId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'lesson_id'
+    },
+    exerciseTypeId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'exercise_type_id'
+    },
+    exerciseNumber: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'exercise_number'
+    },
+    title: {
+        type: DataTypes.TEXT,
+        allowNull: false
+    },
+    instruction: {
+        type: DataTypes.TEXT,
+        allowNull: true
+    },
+    questionData: {
+        type: DataTypes.JSONB,
+        allowNull: false,
+        field: 'question_data'
+    },
+    answerData: {
+        type: DataTypes.JSONB,
+        allowNull: false,
+        field: 'answer_data'
+    },
+    explanation: {
+        type: DataTypes.TEXT,
+        allowNull: true
+    },
+    createdByUserId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'created_by_user_id'
+    },
+    createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false,
+        defaultValue: DataTypes.NOW,
+        field: 'created_at'
+    }
+}, {
+    sequelize,
+    modelName: 'VocabGrammarExercise',
+    tableName: 'vocab_grammar_exercise',
+    schema: 'community',
+    timestamps: false,
+    underscored: true
+});
+
+export default VocabGrammarExercise;

backend/models/community/vocab_grammar_exercise_progress.js

@@ -0,0 +1,57 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../utils/sequelize.js';
+
+class VocabGrammarExerciseProgress extends Model {}
+
+VocabGrammarExerciseProgress.init({
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+    },
+    userId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'user_id'
+    },
+    exerciseId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        field: 'exercise_id'
+    },
+    attempts: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        defaultValue: 0
+    },
+    correctAttempts: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        defaultValue: 0,
+        field: 'correct_attempts'
+    },
+    lastAttemptAt: {
+        type: DataTypes.DATE,
+        allowNull: true,
+        field: 'last_attempt_at'
+    },
+    completed: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+        defaultValue: false
+    },
+    completedAt: {
+        type: DataTypes.DATE,
+        allowNull: true,
+        field: 'completed_at'
+    }
+}, {
+    sequelize,
+    modelName: 'VocabGrammarExerciseProgress',
+    tableName: 'vocab_grammar_exercise_progress',
+    schema: 'community',
+    timestamps: false,
+    underscored: true
+});
+
+export default VocabGrammarExerciseProgress;

backend/models/community/vocab_grammar_exercise_type.js

@@ -0,0 +1,36 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../utils/sequelize.js';
+
+class VocabGrammarExerciseType extends Model {}
+
+VocabGrammarExerciseType.init({
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+    },
+    name: {
+        type: DataTypes.TEXT,
+        allowNull: false,
+        unique: true
+    },
+    description: {
+        type: DataTypes.TEXT,
+        allowNull: true
+    },
+    createdAt: {
+        type: DataTypes.DATE,
+        allowNull: false,
+        defaultValue: DataTypes.NOW,
+        field: 'created_at'
+    }
+}, {
+    sequelize,
+    modelName: 'VocabGrammarExerciseType',
+    tableName: 'vocab_grammar_exercise_type',
+    schema: 'community',
+    timestamps: false,
+    underscored: true
+});
+
+export default VocabGrammarExerciseType;

backend/models/falukant/data/church_application.js

@@ -0,0 +1,47 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../../utils/sequelize.js';
+
+class ChurchApplication extends Model {}
+
+ChurchApplication.init({
+  id: {
+    type: DataTypes.INTEGER,
+    primaryKey: true,
+    autoIncrement: true
+  },
+  officeTypeId: {
+    type: DataTypes.INTEGER,
+    allowNull: false
+  },
+  characterId: {
+    type: DataTypes.INTEGER,
+    allowNull: false
+  },
+  regionId: {
+    type: DataTypes.INTEGER,
+    allowNull: false
+  },
+  supervisorId: {
+    type: DataTypes.INTEGER,
+    allowNull: true,
+    comment: 'ID des Vorgesetzten, der über die Bewerbung entscheidet (null für Einstiegspositionen ohne Supervisor)'
+  },
+  status: {
+    type: DataTypes.ENUM('pending', 'approved', 'rejected'),
+    allowNull: false,
+    defaultValue: 'pending'
+  },
+  decisionDate: {
+    type: DataTypes.DATE,
+    allowNull: true
+  }
+}, {
+  sequelize,
+  modelName: 'ChurchApplication',
+  tableName: 'church_application',
+  schema: 'falukant_data',
+  timestamps: true,
+  underscored: true
+});
+
+export default ChurchApplication;

backend/models/falukant/data/church_office.js

@@ -0,0 +1,38 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../../utils/sequelize.js';
+
+class ChurchOffice extends Model {}
+
+ChurchOffice.init({
+  id: {
+    type: DataTypes.INTEGER,
+    primaryKey: true,
+    autoIncrement: true
+  },
+  officeTypeId: {
+    type: DataTypes.INTEGER,
+    allowNull: false
+  },
+  characterId: {
+    type: DataTypes.INTEGER,
+    allowNull: false
+  },
+  regionId: {
+    type: DataTypes.INTEGER,
+    allowNull: false
+  },
+  supervisorId: {
+    type: DataTypes.INTEGER,
+    allowNull: true,
+    comment: 'ID des Vorgesetzten (höhere Position in der Hierarchie)'
+  }
+}, {
+  sequelize,
+  modelName: 'ChurchOffice',
+  tableName: 'church_office',
+  schema: 'falukant_data',
+  timestamps: true,
+  underscored: true
+});
+
+export default ChurchOffice;

backend/models/falukant/data/production.js

@@ -22,7 +22,12 @@ Production.init({
     startTimestamp: {
         type: DataTypes.DATE,
         allowNull: false,
-        defaultValue: sequelize.literal('CURRENT_TIMESTAMP')}
+        defaultValue: sequelize.literal('CURRENT_TIMESTAMP')},
+    sleep: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+        defaultValue: false,
+        comment: 'Produktion ist zurückgestellt'}
 }, {
     sequelize,
     modelName: 'Production',

backend/models/falukant/data/region.js

@@ -10,11 +10,20 @@ RegionData.init({
         allowNull: false},
     regionTypeId: {
         type: DataTypes.INTEGER,
-        allowNull: false
+        allowNull: false,
+        references: {
+            model: RegionType,
+            key: 'id',
+            schema: 'falukant_type'
+        }
     },
     parentId: {
         type: DataTypes.INTEGER,
-        allowNull: true
+        allowNull: true,
+        references: {
+            model: 'region',
+            key: 'id',
+            schema: 'falukant_data'}
     },
     map: {
         type: DataTypes.JSONB,

backend/models/falukant/data/stock.js

@@ -6,7 +6,8 @@ class FalukantStock extends Model { }
 FalukantStock.init({
     branchId: {
         type: DataTypes.INTEGER,
-        allowNull: false
+        allowNull: false,
+        defaultValue: 0
     },
     stockTypeId: {
         type: DataTypes.INTEGER,

backend/models/falukant/log/product_price_history.js

@@ -0,0 +1,44 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../../utils/sequelize.js';
+
+/**
+ * Preishistorie pro Produkt und Region (Zeitreihe für Preis-Graphen).
+ * Aktuell wird diese Tabelle noch nicht befüllt; sie dient nur als Grundlage.
+ */
+class ProductPriceHistory extends Model { }
+
+ProductPriceHistory.init({
+    productId: {
+        type: DataTypes.INTEGER,
+        allowNull: false
+    },
+    regionId: {
+        type: DataTypes.INTEGER,
+        allowNull: false
+    },
+    price: {
+        type: DataTypes.DECIMAL(12, 2),
+        allowNull: false
+    },
+    recordedAt: {
+        type: DataTypes.DATE,
+        allowNull: false,
+        defaultValue: sequelize.literal('CURRENT_TIMESTAMP')
+    }
+}, {
+    sequelize,
+    modelName: 'ProductPriceHistory',
+    tableName: 'product_price_history',
+    schema: 'falukant_log',
+    timestamps: false,
+    underscored: true,
+    indexes: [
+        {
+            name: 'product_price_history_product_region_recorded_idx',
+            fields: ['product_id', 'region_id', 'recorded_at']
+        }
+    ]
+});
+
+export default ProductPriceHistory;
+

backend/models/falukant/log/relationship_change_log.js

@@ -0,0 +1,49 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../../utils/sequelize.js';
+
+/**
+ * Log aller Änderungen an relationship und marriage_proposals.
+ * Einträge werden ausschließlich durch DB-Trigger geschrieben und nicht gelöscht.
+ * Hilft zu analysieren, warum z.B. Werbungen um einen Partner verschwinden.
+ */
+class RelationshipChangeLog extends Model {}
+
+RelationshipChangeLog.init(
+  {
+    changedAt: {
+      type: DataTypes.DATE,
+      allowNull: false,
+      defaultValue: DataTypes.NOW
+    },
+    tableName: {
+      type: DataTypes.STRING(64),
+      allowNull: false
+    },
+    operation: {
+      type: DataTypes.STRING(16),
+      allowNull: false
+    },
+    recordId: {
+      type: DataTypes.INTEGER,
+      allowNull: true
+    },
+    payloadOld: {
+      type: DataTypes.JSONB,
+      allowNull: true
+    },
+    payloadNew: {
+      type: DataTypes.JSONB,
+      allowNull: true
+    }
+  },
+  {
+    sequelize,
+    modelName: 'RelationshipChangeLog',
+    tableName: 'relationship_change_log',
+    schema: 'falukant_log',
+    timestamps: false,
+    underscored: true
+  }
+);
+
+export default RelationshipChangeLog;

backend/models/falukant/predefine/church_office_requirement.js

@@ -0,0 +1,35 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../../utils/sequelize.js';
+
+class ChurchOfficeRequirement extends Model {}
+
+ChurchOfficeRequirement.init({
+  id: {
+    type: DataTypes.INTEGER,
+    primaryKey: true,
+    autoIncrement: true
+  },
+  officeTypeId: {
+    type: DataTypes.INTEGER,
+    allowNull: false
+  },
+  prerequisiteOfficeTypeId: {
+    type: DataTypes.INTEGER,
+    allowNull: true,
+    comment: 'Erforderliche niedrigere Position in der Hierarchie'
+  },
+  minTitleLevel: {
+    type: DataTypes.INTEGER,
+    allowNull: true,
+    comment: 'Mindest-Titel-Level (optional)'
+  }
+}, {
+  sequelize,
+  modelName: 'ChurchOfficeRequirement',
+  tableName: 'church_office_requirement',
+  schema: 'falukant_predefine',
+  timestamps: false,
+  underscored: true
+});
+
+export default ChurchOfficeRequirement;

backend/models/falukant/predefine/promotional_gift_character_trait.js

@@ -10,12 +10,14 @@ PromotionalGiftCharacterTrait.init(
     giftId: {
       type: DataTypes.INTEGER,
       field: 'gift_id',
-      allowNull: false
+      allowNull: false,
+      primaryKey: true
     },
     traitId: {
       type: DataTypes.INTEGER,
       field: 'trait_id',
-      allowNull: false
+      allowNull: false,
+      primaryKey: true
     },
     suitability: {
       type: DataTypes.INTEGER,

backend/models/falukant/predefine/promotional_gift_mood.js

@@ -10,12 +10,14 @@ PromotionalGiftMood.init(
     giftId: {
       type: DataTypes.INTEGER,
       field: 'gift_id',
-      allowNull: false
+      allowNull: false,
+      primaryKey: true
     },
     moodId: {
       type: DataTypes.INTEGER,
       field: 'mood_id',
-      allowNull: false
+      allowNull: false,
+      primaryKey: true
     },
     suitability: {
       type: DataTypes.INTEGER,

backend/models/falukant/type/church_office_type.js

@@ -0,0 +1,38 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../../utils/sequelize.js';
+
+class ChurchOfficeType extends Model {}
+
+ChurchOfficeType.init({
+  id: {
+    type: DataTypes.INTEGER,
+    primaryKey: true,
+    autoIncrement: true
+  },
+  name: {
+    type: DataTypes.STRING,
+    allowNull: false
+  },
+  seatsPerRegion: {
+    type: DataTypes.INTEGER,
+    allowNull: false
+  },
+  regionType: {
+    type: DataTypes.STRING,
+    allowNull: false
+  },
+  hierarchyLevel: {
+    type: DataTypes.INTEGER,
+    allowNull: false,
+    comment: 'Höhere Zahl = höhere Position in der Hierarchie'
+  }
+}, {
+  sequelize,
+  modelName: 'ChurchOfficeType',
+  tableName: 'church_office_type',
+  schema: 'falukant_type',
+  timestamps: false,
+  underscored: true
+});
+
+export default ChurchOfficeType;

backend/models/falukant/type/product.js

@@ -15,7 +15,8 @@ ProductType.init({
         allowNull: false},
     sellCost: {
         type: DataTypes.INTEGER,
-        allowNull: false}
+        allowNull: false
+    }
 }, {
     sequelize,
     modelName: 'ProductType',

backend/models/index.js

@@ -4,8 +4,10 @@ import SettingsType from './type/settings.js';
 import UserParamValue from './type/user_param_value.js';
 import UserParamType from './type/user_param.js';
 import UserRightType from './type/user_right.js';
+import WidgetType from './type/widget_type.js';
 import User from './community/user.js';
 import UserParam from './community/user_param.js';
+import UserDashboard from './community/user_dashboard.js';
 import Login from './logs/login.js';
 import UserRight from './community/user_right.js';
 import InterestType from './type/interest.js';
@@ -87,6 +89,7 @@ import Learning from './falukant/data/learning.js';
 import Credit from './falukant/data/credit.js';
 import DebtorsPrism from './falukant/data/debtors_prism.js';
 import HealthActivity from './falukant/log/health_activity.js';
+import ProductPriceHistory from './falukant/log/product_price_history.js';
 
 // — Match3 Minigame —
 import Match3Campaign from './match3/campaign.js';
@@ -113,6 +116,13 @@ import Vote from './falukant/data/vote.js';
 import ElectionResult from './falukant/data/election_result.js';
 import PoliticalOfficeHistory from './falukant/log/political_office_history.js';
 import ElectionHistory from './falukant/log/election_history.js';
+import RelationshipChangeLog from './falukant/log/relationship_change_log.js';
+
+// — Kirchliche Ämter (Church) —
+import ChurchOfficeType from './falukant/type/church_office_type.js';
+import ChurchOfficeRequirement from './falukant/predefine/church_office_requirement.js';
+import ChurchOffice from './falukant/data/church_office.js';
+import ChurchApplication from './falukant/data/church_application.js';
 import UndergroundType from './falukant/type/underground.js';
 import Underground from './falukant/data/underground.js';
 import VehicleType from './falukant/type/vehicle.js';
@@ -129,13 +139,25 @@ import ChatRight from './chat/rights.js';
 import ChatUserRight from './chat/user_rights.js';
 import RoomType from './chat/room_type.js';
 
+// — Vocab Courses —
+import VocabCourse from './community/vocab_course.js';
+import VocabCourseLesson from './community/vocab_course_lesson.js';
+import VocabCourseEnrollment from './community/vocab_course_enrollment.js';
+import VocabCourseProgress from './community/vocab_course_progress.js';
+import VocabGrammarExerciseType from './community/vocab_grammar_exercise_type.js';
+import VocabGrammarExercise from './community/vocab_grammar_exercise.js';
+import VocabGrammarExerciseProgress from './community/vocab_grammar_exercise_progress.js';
+import CalendarEvent from './community/calendar_event.js';
+
 const models = {
   SettingsType,
   UserParamValue,
   UserParamType,
   UserRightType,
+  WidgetType,
   User,
   UserParam,
+  UserDashboard,
   Login,
   UserRight,
   InterestType,
@@ -218,6 +240,7 @@ const models = {
   Credit,
   DebtorsPrism,
   HealthActivity,
+  ProductPriceHistory,
   RegionDistance,
   VehicleType,
   Vehicle,
@@ -233,6 +256,11 @@ const models = {
   ElectionResult,
   PoliticalOfficeHistory,
   ElectionHistory,
+  RelationshipChangeLog,
+  ChurchOfficeType,
+  ChurchOfficeRequirement,
+  ChurchOffice,
+  ChurchApplication,
   UndergroundType,
   Underground,
   WeatherType,
@@ -263,6 +291,18 @@ const models = {
   TaxiMapTileStreet,
   TaxiMapTileHouse,
   TaxiHighscore,
+  
+  // Vocab Courses
+  VocabCourse,
+  VocabCourseLesson,
+  VocabCourseEnrollment,
+  VocabCourseProgress,
+  VocabGrammarExerciseType,
+  VocabGrammarExercise,
+  VocabGrammarExerciseProgress,
+  
+  // Calendar
+  CalendarEvent,
 };
 
 export default models;

backend/models/trigger.js

@@ -350,15 +350,16 @@ export async function createTriggers() {
           SELECT * FROM random_fill
         ),
     
-        -- 8) Neue Ämter anlegen und sofort zurückliefern
+        -- 8) Neue Ämter anlegen – created_at = Wahldatum (Amtsbeginn), nicht NOW()
+        --    damit termEnds = Amtsbeginn + termLength korrekt berechnet werden kann
         created_offices AS (
           INSERT INTO falukant_data.political_office
             (office_type_id, character_id, created_at, updated_at, region_id)
           SELECT
             tp.tp_office_type_id,
             fw.character_id,
-            NOW()      AS created_at,
+            tp.tp_election_date AS created_at,
-            NOW()      AS updated_at,
+            tp.tp_election_date AS updated_at,
             tp.tp_region_id
           FROM final_winners fw
           JOIN to_process tp

backend/models/type/widget_type.js

@@ -0,0 +1,39 @@
+import { sequelize } from '../../utils/sequelize.js';
+import { DataTypes } from 'sequelize';
+
+const WidgetType = sequelize.define('widget_type', {
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true
+    },
+    label: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        comment: 'Anzeigename des Widgets (z. B. "Termine")'
+    },
+    endpoint: {
+        type: DataTypes.STRING,
+        allowNull: false,
+        comment: 'API-Pfad (z. B. "/api/termine")'
+    },
+    description: {
+        type: DataTypes.STRING,
+        allowNull: true,
+        comment: 'Optionale Beschreibung'
+    },
+    orderId: {
+        type: DataTypes.INTEGER,
+        allowNull: false,
+        defaultValue: 0,
+        field: 'order_id',
+        comment: 'Sortierreihenfolge'
+    }
+}, {
+    tableName: 'widget_type',
+    schema: 'type',
+    underscored: true,
+    timestamps: false
+});
+
+export default WidgetType;

backend/package.json

@@ -9,6 +9,9 @@
     "dev": "NODE_ENV=development node server.js",
     "start-daemon": "node daemonServer.js",
     "sync-db": "node sync-database.js",
+    "sync-tables": "node sync-tables-only.js",
+    "check-connections": "node check-connections.js",
+    "cleanup-connections": "node cleanup-connections.js",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "keywords": [],
@@ -37,7 +40,8 @@
     "sharp": "^0.34.3",
     "socket.io": "^4.7.5",
     "uuid": "^11.1.0",
-    "ws": "^8.18.0"
+    "ws": "^8.18.0",
+    "@gltf-transform/cli": "^4.3.0"
   },
   "devDependencies": {
     "sequelize-cli": "^6.6.2"

backend/routers/calendarRouter.js

@@ -0,0 +1,20 @@
+import { Router } from 'express';
+import { authenticate } from '../middleware/authMiddleware.js';
+import calendarController from '../controllers/calendarController.js';
+
+const router = Router();
+
+// All routes require authentication
+router.get('/events', authenticate, calendarController.getEvents);
+router.get('/events/:id', authenticate, calendarController.getEvent);
+router.post('/events', authenticate, calendarController.createEvent);
+router.put('/events/:id', authenticate, calendarController.updateEvent);
+router.delete('/events/:id', authenticate, calendarController.deleteEvent);
+router.get('/birthdays', authenticate, calendarController.getFriendsBirthdays);
+
+// Widget endpoints
+router.get('/widget/birthdays', authenticate, calendarController.getWidgetBirthdays);
+router.get('/widget/upcoming', authenticate, calendarController.getWidgetUpcoming);
+router.get('/widget/mini', authenticate, calendarController.getWidgetMiniCalendar);
+
+export default router;

backend/routers/dashboardRouter.js

@@ -0,0 +1,11 @@
+import { Router } from 'express';
+import { authenticate } from '../middleware/authMiddleware.js';
+import dashboardController from '../controllers/dashboardController.js';
+
+const router = Router();
+
+router.get('/widgets', authenticate, dashboardController.getAvailableWidgets.bind(dashboardController));
+router.get('/config', authenticate, dashboardController.getConfig.bind(dashboardController));
+router.put('/config', authenticate, dashboardController.setConfig.bind(dashboardController));
+
+export default router;

backend/routers/falukantRouter.js

@@ -11,6 +11,7 @@ router.get('/character/affect', falukantController.getCharacterAffect);
 router.get('/name/randomfirstname/:gender', falukantController.randomFirstName);
 router.get('/name/randomlastname', falukantController.randomLastName);
 router.get('/info', falukantController.getInfo);
+router.get('/dashboard-widget', falukantController.getDashboardWidget);
 router.get('/branches/types', falukantController.getBranchTypes);
 router.get('/branches/:branch', falukantController.getBranch);
 router.get('/branches', falukantController.getBranches);
@@ -28,6 +29,7 @@ router.get('/inventory/?:branchId', falukantController.getInventory);
 router.post('/sell/all', falukantController.sellAllProducts);
 router.post('/sell', falukantController.sellProduct);
 router.post('/moneyhistory', falukantController.moneyHistory);
+router.post('/moneyhistory/graph', falukantController.moneyHistoryGraph);
 router.get('/storage/:branchId', falukantController.getStorage);
 router.post('/storage', falukantController.buyStorage);
 router.delete('/storage', falukantController.sellStorage);
@@ -38,14 +40,14 @@ router.get('/director/:branchId', falukantController.getDirectorForBranch);
 router.get('/directors', falukantController.getAllDirectors);
 router.post('/directors', falukantController.updateDirector);
 router.post('/family/acceptmarriageproposal', falukantController.acceptMarriageProposal);
+router.post('/family/cancel-wooing', falukantController.cancelWooing);
 router.post('/family/set-heir', falukantController.setHeir);
-router.get('/heirs/potential', falukantController.getPotentialHeirs);
-router.post('/heirs/select', falukantController.selectHeir);
 router.get('/family/gifts', falukantController.getGifts);
 router.get('/family/children', falukantController.getChildren);
 router.post('/family/gift', falukantController.sendGift);
 router.get('/family', falukantController.getFamily);
 router.get('/nobility/titels', falukantController.getTitlesOfNobility);
+router.get('/reputation/actions', falukantController.getReputationActions);
 router.get('/houses/types', falukantController.getHouseTypes);
 router.get('/houses/buyable', falukantController.getBuyableHouses);
 router.get('/houses', falukantController.getUserHouse);
@@ -55,10 +57,13 @@ router.post('/houses', falukantController.buyUserHouse);
 router.get('/party/types', falukantController.getPartyTypes);
 router.post('/party', falukantController.createParty);
 router.get('/party', falukantController.getParties);
-router.get('/reputation/actions', falukantController.getReputationActions);
-router.post('/reputation/actions', falukantController.executeReputationAction);
 router.get('/family/notbaptised', falukantController.getNotBaptisedChildren);
 router.post('/church/baptise', falukantController.baptise);
+router.get('/church/overview', falukantController.getChurchOverview);
+router.get('/church/positions/available', falukantController.getAvailableChurchPositions);
+router.get('/church/applications/supervised', falukantController.getSupervisedApplications);
+router.post('/church/positions/apply', falukantController.applyForChurchPosition);
+router.post('/church/applications/decide', falukantController.decideOnChurchApplication);
 router.get('/education', falukantController.getEducation);
 router.post('/education', falukantController.sendToSchool);
 router.get('/bank/overview', falukantController.getBankOverview);
@@ -76,8 +81,9 @@ router.get('/politics/open', falukantController.getOpenPolitics);
 router.post('/politics/open', falukantController.applyForElections);
 router.get('/cities', falukantController.getRegions);
 router.get('/products/price-in-region', falukantController.getProductPriceInRegion);
-router.get('/products/prices-in-region-batch', falukantController.getProductPricesInRegionBatch);
+router.get('/products/prices-in-region', falukantController.getAllProductPricesInRegion);
 router.get('/products/prices-in-cities', falukantController.getProductPricesInCities);
+router.post('/products/prices-in-cities-batch', falukantController.getProductPricesInCitiesBatch);
 router.get('/branches/:branchId/taxes', falukantController.getBranchTaxes);
 router.get('/vehicles/types', falukantController.getVehicleTypes);
 router.post('/vehicles', falukantController.buyVehicles);

backend/routers/modelsProxyRouter.js

@@ -0,0 +1,28 @@
+import express from 'express';
+import path from 'path';
+import { getOptimizedModelPath } from '../services/modelsProxyService.js';
+
+const router = express.Router();
+
+/**
+ * GET /api/models/3d/falukant/characters/:filename
+ * Liefert die Draco-optimierte GLB-Datei (aus Cache oder nach Optimierung).
+ */
+router.get('/3d/falukant/characters/:filename', async (req, res) => {
+  const { filename } = req.params;
+
+  try {
+    const cachePath = await getOptimizedModelPath(filename);
+    res.setHeader('Content-Type', 'model/gltf-binary');
+    res.setHeader('Cache-Control', 'public, max-age=31536000, immutable');
+    res.sendFile(cachePath);
+  } catch (e) {
+    if (e.message?.includes('Invalid model filename') || e.message?.includes('not found')) {
+      return res.status(404).send(e.message);
+    }
+    console.error('[models-proxy]', e.message);
+    res.status(500).send('Model optimization failed');
+  }
+});
+
+export default router;

backend/routers/newsRouter.js

@@ -0,0 +1,9 @@
+import { Router } from 'express';
+import { authenticate } from '../middleware/authMiddleware.js';
+import newsController from '../controllers/newsController.js';
+
+const router = Router();
+
+router.get('/', authenticate, newsController.getNews.bind(newsController));
+
+export default router;

backend/routers/vocabRouter.js

@@ -8,6 +8,7 @@ const vocabController = new VocabController();
 router.use(authenticate);
 
 router.get('/languages', vocabController.listLanguages);
+router.get('/languages/all', vocabController.listAllLanguages);
 router.post('/languages', vocabController.createLanguage);
 router.post('/subscribe', vocabController.subscribe);
 router.get('/languages/:languageId', vocabController.getLanguage);
@@ -22,6 +23,39 @@ router.get('/chapters/:chapterId', vocabController.getChapter);
 router.get('/chapters/:chapterId/vocabs', vocabController.listChapterVocabs);
 router.post('/chapters/:chapterId/vocabs', vocabController.addVocabToChapter);
 
+// Courses
+router.post('/courses', vocabController.createCourse);
+router.get('/courses', vocabController.getCourses);
+router.get('/courses/my', vocabController.getMyCourses);
+router.post('/courses/find-by-code', vocabController.getCourseByShareCode);
+router.get('/courses/:courseId', vocabController.getCourse);
+router.put('/courses/:courseId', vocabController.updateCourse);
+router.delete('/courses/:courseId', vocabController.deleteCourse);
+
+// Lessons
+router.post('/courses/:courseId/lessons', vocabController.addLessonToCourse);
+router.put('/lessons/:lessonId', vocabController.updateLesson);
+router.delete('/lessons/:lessonId', vocabController.deleteLesson);
+
+// Enrollment
+router.post('/courses/:courseId/enroll', vocabController.enrollInCourse);
+router.delete('/courses/:courseId/enroll', vocabController.unenrollFromCourse);
+
+// Progress
+router.get('/courses/:courseId/progress', vocabController.getCourseProgress);
+router.get('/lessons/:lessonId', vocabController.getLesson);
+router.put('/lessons/:lessonId/progress', vocabController.updateLessonProgress);
+
+// Grammar Exercises
+router.get('/grammar/exercise-types', vocabController.getExerciseTypes);
+router.post('/lessons/:lessonId/grammar-exercises', vocabController.createGrammarExercise);
+router.get('/lessons/:lessonId/grammar-exercises', vocabController.getGrammarExercisesForLesson);
+router.get('/lessons/:lessonId/grammar-exercises/progress', vocabController.getGrammarExerciseProgress);
+router.get('/grammar-exercises/:exerciseId', vocabController.getGrammarExercise);
+router.post('/grammar-exercises/:exerciseId/check', vocabController.checkGrammarExerciseAnswer);
+router.put('/grammar-exercises/:exerciseId', vocabController.updateGrammarExercise);
+router.delete('/grammar-exercises/:exerciseId', vocabController.deleteGrammarExercise);
+
 export default router;
 
 

backend/scripts/add-bisaya-week1-lessons.js

@@ -0,0 +1,116 @@
+#!/usr/bin/env node
+/**
+ * Script zum Hinzufügen der Lektionen 9 und 10 (Woche 1 - Wiederholung, Woche 1 - Vokabeltest)
+ * zu bestehenden Bisaya-Kursen, falls diese noch fehlen.
+ *
+ * Verwendung:
+ * node backend/scripts/add-bisaya-week1-lessons.js
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+
+const LESSONS_TO_ADD = [
+  {
+    lessonNumber: 9,
+    weekNumber: 1,
+    dayNumber: 5,
+    lessonType: 'review',
+    title: 'Woche 1 - Wiederholung',
+    description: 'Wiederhole alle Inhalte der ersten Woche',
+    culturalNotes: 'Wiederholung ist der Schlüssel zum Erfolg!',
+    targetMinutes: 30,
+    targetScorePercent: 80,
+    requiresReview: false
+  },
+  {
+    lessonNumber: 10,
+    weekNumber: 1,
+    dayNumber: 5,
+    lessonType: 'vocab',
+    title: 'Woche 1 - Vokabeltest',
+    description: 'Teste dein Wissen aus Woche 1',
+    culturalNotes: null,
+    targetMinutes: 15,
+    targetScorePercent: 80,
+    requiresReview: true
+  }
+];
+
+async function addBisayaWeek1Lessons() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  const [bisayaLanguage] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    { type: sequelize.QueryTypes.SELECT }
+  );
+
+  if (!bisayaLanguage) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const courses = await sequelize.query(
+    `SELECT id, title FROM community.vocab_course WHERE language_id = :languageId`,
+    {
+      replacements: { languageId: bisayaLanguage.id },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`Gefunden: ${courses.length} Bisaya-Kurs(e)\n`);
+
+  let totalAdded = 0;
+
+  for (const course of courses) {
+    console.log(`📚 Kurs: ${course.title} (ID: ${course.id})`);
+
+    for (const lessonData of LESSONS_TO_ADD) {
+      const existing = await VocabCourseLesson.findOne({
+        where: {
+          courseId: course.id,
+          lessonNumber: lessonData.lessonNumber
+        }
+      });
+
+      if (existing) {
+        console.log(`   ⏭️  Lektion ${lessonData.lessonNumber}: "${lessonData.title}" - bereits vorhanden`);
+        continue;
+      }
+
+      await VocabCourseLesson.create({
+        courseId: course.id,
+        chapterId: null,
+        lessonNumber: lessonData.lessonNumber,
+        title: lessonData.title,
+        description: lessonData.description,
+        weekNumber: lessonData.weekNumber,
+        dayNumber: lessonData.dayNumber,
+        lessonType: lessonData.lessonType,
+        culturalNotes: lessonData.culturalNotes,
+        targetMinutes: lessonData.targetMinutes,
+        targetScorePercent: lessonData.targetScorePercent,
+        requiresReview: lessonData.requiresReview
+      });
+
+      console.log(`   ✅ Lektion ${lessonData.lessonNumber}: "${lessonData.title}" hinzugefügt`);
+      totalAdded++;
+    }
+    console.log('');
+  }
+
+  console.log(`\n🎉 Fertig! ${totalAdded} Lektion(en) hinzugefügt.`);
+  console.log('💡 Führe danach create-bisaya-course-content.js aus, um die Übungen zu erstellen.');
+}
+
+addBisayaWeek1Lessons()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/add-grammar-exercises-to-existing-courses.js

@@ -0,0 +1,141 @@
+#!/usr/bin/env node
+/**
+ * Script zum Hinzufügen von Grammatik-Übungen zu bestehenden Kursen
+ * 
+ * Verwendung:
+ * node backend/scripts/add-grammar-exercises-to-existing-courses.js
+ * 
+ * Fügt Beispiel-Grammatik-Übungen zu allen Grammar-Lektionen hinzu, die noch keine Übungen haben.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import User from '../models/community/user.js';
+
+async function findOrCreateSystemUser() {
+  let systemUser = await User.findOne({ 
+    where: { 
+      username: 'system' 
+    } 
+  });
+
+  if (!systemUser) {
+    systemUser = await User.findOne({ 
+      where: { 
+        username: 'admin' 
+      } 
+    });
+  }
+
+  if (!systemUser) {
+    console.error('❌ System-Benutzer nicht gefunden. Bitte erstelle einen System-Benutzer.');
+    throw new Error('System user not found');
+  }
+
+  return systemUser;
+}
+
+// Erstelle Beispiel-Grammatik-Übungen für eine Grammar-Lektion
+function createExampleGrammarExercises(lessonId, lessonTitle, ownerUserId) {
+  const exercises = [];
+  
+  // Beispiel-Übung 1: Gap Fill (Lückentext)
+  exercises.push({
+    lessonId: lessonId,
+    exerciseTypeId: 1, // gap_fill
+    exerciseNumber: 1,
+    title: `${lessonTitle} - Übung 1`,
+    instruction: 'Fülle die Lücken mit den richtigen Wörtern.',
+    questionData: JSON.stringify({
+      type: 'gap_fill',
+      text: 'Hallo! Wie geht es {gap}? Mir geht es {gap}, danke!',
+      gaps: 2
+    }),
+    answerData: JSON.stringify({
+      type: 'gap_fill',
+      answers: ['dir', 'gut']
+    }),
+    explanation: 'Die richtigen Antworten sind "dir" und "gut".',
+    createdByUserId: ownerUserId
+  });
+
+  // Beispiel-Übung 2: Multiple Choice
+  exercises.push({
+    lessonId: lessonId,
+    exerciseTypeId: 2, // multiple_choice
+    exerciseNumber: 2,
+    title: `${lessonTitle} - Übung 2`,
+    instruction: 'Wähle die richtige Antwort aus.',
+    questionData: JSON.stringify({
+      type: 'multiple_choice',
+      question: 'Wie sagt man "Guten Tag"?',
+      options: ['Guten Tag', 'Gute Nacht', 'Auf Wiedersehen', 'Tschüss']
+    }),
+    answerData: JSON.stringify({
+      type: 'multiple_choice',
+      correctAnswer: 0
+    }),
+    explanation: 'Die richtige Antwort ist "Guten Tag".',
+    createdByUserId: ownerUserId
+  });
+
+  return exercises;
+}
+
+async function addGrammarExercisesToExistingCourses() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  const systemUser = await findOrCreateSystemUser();
+  console.log(`Verwende System-Benutzer: ${systemUser.username} (ID: ${systemUser.id})\n`);
+
+  // Finde alle Grammar-Lektionen ohne Übungen
+  const grammarLessons = await sequelize.query(
+    `SELECT l.id, l.title, l.course_id, c.owner_user_id
+     FROM community.vocab_course_lesson l
+     JOIN community.vocab_course c ON c.id = l.course_id
+     WHERE l.lesson_type = 'grammar'
+     AND NOT EXISTS (
+       SELECT 1 FROM community.vocab_grammar_exercise e
+       WHERE e.lesson_id = l.id
+     )
+     ORDER BY l.course_id, l.lesson_number`,
+    {
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`Gefunden: ${grammarLessons.length} Grammar-Lektionen ohne Übungen\n`);
+
+  if (grammarLessons.length === 0) {
+    console.log('✅ Alle Grammar-Lektionen haben bereits Übungen.');
+    return;
+  }
+
+  let addedCount = 0;
+  for (const lesson of grammarLessons) {
+    const exercises = createExampleGrammarExercises(lesson.id, lesson.title, lesson.owner_user_id);
+    
+    for (const exercise of exercises) {
+      await VocabGrammarExercise.create(exercise);
+      addedCount++;
+    }
+    
+    console.log(`✅ ${exercises.length} Übungen zu "${lesson.title}" hinzugefügt`);
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${addedCount} Grammatik-Übungen zu ${grammarLessons.length} Lektionen hinzugefügt`);
+}
+
+addGrammarExercisesToExistingCourses()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/create-bisaya-course-content.js

@@ -0,0 +1,829 @@
+#!/usr/bin/env node
+/**
+ * Script zum Erstellen von sprachspezifischem Content für Bisaya-Kurse
+ * 
+ * Verwendung:
+ * node backend/scripts/create-bisaya-course-content.js
+ * 
+ * Erstellt Grammatik-Übungen für alle Lektionen in Bisaya-Kursen basierend auf dem Thema der Lektion.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import VocabCourse from '../models/community/vocab_course.js';
+import User from '../models/community/user.js';
+
+// Bisaya-spezifische Übungen basierend auf Lektionsthemen
+const BISAYA_EXERCISES = {
+  // Lektion 1: Begrüßungen & Höflichkeit
+  'Begrüßungen & Höflichkeit': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Wie geht es dir?" auf Bisaya?',
+      instruction: 'Wähle die richtige Begrüßung aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Wie geht es dir?" auf Bisaya?',
+        options: ['Kumusta ka?', 'Maayo', 'Salamat', 'Palihug']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Kumusta ka?" ist die Standard-Begrüßung auf Bisaya, ähnlich wie "Wie geht es dir?"'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Begrüßungen vervollständigen',
+      instruction: 'Fülle die Lücken mit den richtigen Bisaya-Wörtern.',
+      questionData: {
+        type: 'gap_fill',
+        text: 'Kumusta ka? Maayo {gap} (ich). Salamat.',
+        gaps: 1
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['ko']
+      },
+      explanation: '"Maayo ko" bedeutet "Mir geht es gut". "ko" ist "ich" auf Bisaya.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Was bedeutet "Salamat"?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Salamat"?',
+        options: ['Danke', 'Bitte', 'Entschuldigung', 'Auf Wiedersehen']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Salamat" bedeutet "Danke" auf Bisaya.'
+    }
+  ],
+
+  // Lektion 3: Familienwörter
+  'Familienwörter': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Mutter" auf Bisaya?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Mutter" auf Bisaya?',
+        options: ['Nanay', 'Tatay', 'Kuya', 'Ate']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Nanay" bedeutet "Mutter" auf Bisaya. "Mama" wird auch verwendet.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Vater" auf Bisaya?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Vater" auf Bisaya?',
+        options: ['Tatay', 'Nanay', 'Kuya', 'Ate']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Tatay" bedeutet "Vater" auf Bisaya. "Papa" wird auch verwendet.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "älterer Bruder" auf Bisaya?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "älterer Bruder" auf Bisaya?',
+        options: ['Kuya', 'Ate', 'Nanay', 'Tatay']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Kuya" bedeutet "älterer Bruder" auf Bisaya. Wird auch für respektvolle Anrede von älteren Männern verwendet.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "ältere Schwester" auf Bisaya?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "ältere Schwester" auf Bisaya?',
+        options: ['Ate', 'Kuya', 'Nanay', 'Tatay']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Ate" bedeutet "ältere Schwester" auf Bisaya. Wird auch für respektvolle Anrede von älteren Frauen verwendet.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Großmutter" auf Bisaya?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Großmutter" auf Bisaya?',
+        options: ['Lola', 'Lolo', 'Nanay', 'Tatay']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Lola" bedeutet "Großmutter" auf Bisaya.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Großvater" auf Bisaya?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Großvater" auf Bisaya?',
+        options: ['Lolo', 'Lola', 'Nanay', 'Tatay']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Lolo" bedeutet "Großvater" auf Bisaya.'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Familienwörter vervollständigen',
+      instruction: 'Fülle die Lücken mit den richtigen Bisaya-Familienwörtern.',
+      questionData: {
+        type: 'gap_fill',
+        text: '{gap} (Mutter) | {gap} (Vater) | {gap} (älterer Bruder) | {gap} (ältere Schwester) | {gap} (Großmutter) | {gap} (Großvater)',
+        gaps: 6
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['Nanay', 'Tatay', 'Kuya', 'Ate', 'Lola', 'Lolo']
+      },
+      explanation: 'Nanay = Mutter, Tatay = Vater, Kuya = älterer Bruder, Ate = ältere Schwester, Lola = Großmutter, Lolo = Großvater.'
+    },
+    {
+      exerciseTypeId: 4, // transformation
+      title: 'Familienwörter übersetzen',
+      instruction: 'Übersetze das Familienwort ins Bisaya.',
+      questionData: {
+        type: 'transformation',
+        text: 'Mutter',
+        sourceLanguage: 'Deutsch',
+        targetLanguage: 'Bisaya'
+      },
+      answerData: {
+        type: 'transformation',
+        correct: 'Nanay',
+        alternatives: ['Mama', 'Nanay', 'Inahan']
+      },
+      explanation: '"Nanay" oder "Mama" bedeutet "Mutter" auf Bisaya.'
+    }
+  ],
+
+  // Lektion 15: Zeitformen - Grundlagen
+  'Zeitformen - Grundlagen': [
+    {
+      exerciseTypeId: 4, // transformation
+      title: 'Vergangenheit verstehen',
+      instruction: 'Was bedeutet "Ni-kaon ko"?',
+      questionData: {
+        type: 'transformation',
+        text: 'Ni-kaon ko',
+        sourceLanguage: 'Bisaya',
+        targetLanguage: 'Deutsch'
+      },
+      answerData: {
+        type: 'transformation',
+        correct: 'Ich habe gegessen',
+        alternatives: ['I ate', 'I have eaten']
+      },
+      explanation: 'Das Präfix "Ni-" zeigt die Vergangenheit an. "Ni-kaon ko" bedeutet "Ich habe gegessen".'
+    },
+    {
+      exerciseTypeId: 4, // transformation
+      title: 'Zukunft verstehen',
+      instruction: 'Was bedeutet "Mo-kaon ko"?',
+      questionData: {
+        type: 'transformation',
+        text: 'Mo-kaon ko',
+        sourceLanguage: 'Bisaya',
+        targetLanguage: 'Deutsch'
+      },
+      answerData: {
+        type: 'transformation',
+        correct: 'Ich werde essen',
+        alternatives: ['I will eat', 'I am going to eat']
+      },
+      explanation: 'Das Präfix "Mo-" zeigt die Zukunft an. "Mo-kaon ko" bedeutet "Ich werde essen".'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Zeitformen erkennen',
+      instruction: 'Setze die richtigen Präfixe ein.',
+      questionData: {
+        type: 'gap_fill',
+        text: '{gap}-kaon ko (Vergangenheit) | {gap}-kaon ko (Zukunft)',
+        gaps: 2
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['Ni', 'Mo']
+      },
+      explanation: 'Ni- für Vergangenheit, Mo- für Zukunft.'
+    }
+  ],
+
+  // Lektion 25: Höflichkeitsformen
+  'Höflichkeitsformen': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Bitte langsam"?',
+      instruction: 'Wähle die höfliche Form aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Bitte langsam" auf Bisaya?',
+        options: ['Hinay-hinay lang', 'Palihug', 'Salamat', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Hinay-hinay lang" bedeutet "Bitte langsam" und ist sehr höflich.'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Höfliche Sätze vervollständigen',
+      instruction: 'Fülle die Lücken mit höflichen Wörtern.',
+      questionData: {
+        type: 'gap_fill',
+        text: '{gap} lang (Bitte langsam), wala ko kasabot. {gap} ka mubalik? (Bitte wiederholen)',
+        gaps: 2
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['Hinay-hinay', 'Palihug']
+      },
+      explanation: '"Hinay-hinay lang" = "Bitte langsam", "Palihug" = "Bitte".'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Was bedeutet "Palihug"?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Palihug"?',
+        options: ['Bitte', 'Danke', 'Entschuldigung', 'Gern geschehen']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Palihug" bedeutet "Bitte" auf Bisaya und wird für höfliche Bitten verwendet.'
+    }
+  ],
+
+  // Lektion: Überlebenssätze
+  'Überlebenssätze': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Ich verstehe nicht"?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Ich verstehe nicht" auf Bisaya?',
+        options: ['Wala ko kasabot', 'Palihug', 'Salamat', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Wala ko kasabot" bedeutet "Ich verstehe nicht" - sehr wichtig für Anfänger!'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Kannst du das wiederholen?"?',
+      instruction: 'Wähle die richtige Bitte aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Kannst du das wiederholen?" auf Bisaya?',
+        options: ['Palihug ka mubalik?', 'Salamat', 'Maayo', 'Kumusta ka?']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Palihug ka mubalik?" bedeutet "Bitte kannst du wiederholen?" - essentiell für das Lernen!'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Überlebenssätze vervollständigen',
+      instruction: 'Fülle die Lücken mit den richtigen Bisaya-Wörtern.',
+      questionData: {
+        type: 'gap_fill',
+        text: '{gap} ko kasabot (Ich verstehe nicht). {gap} ka mubalik? (Bitte wiederholen) {gap} lang (Bitte langsam).',
+        gaps: 3
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['Wala', 'Palihug', 'Hinay-hinay']
+      },
+      explanation: '"Wala ko kasabot" = "Ich verstehe nicht", "Palihug ka mubalik?" = "Bitte wiederholen", "Hinay-hinay lang" = "Bitte langsam".'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Wo ist...?"?',
+      instruction: 'Wähle die richtige Frage aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Wo ist die Toilette?" auf Bisaya?',
+        options: ['Asa ang CR?', 'Kumusta ka?', 'Salamat', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Asa ang CR?" bedeutet "Wo ist die Toilette?" - "Asa" = "Wo", "CR" = "Comfort Room" (Toilette).'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Wie viel kostet das?"?',
+      instruction: 'Wähle die richtige Frage aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Wie viel kostet das?" auf Bisaya?',
+        options: ['Tagpila ni?', 'Asa ni?', 'Unsa ni?', 'Kinsa ni?']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Tagpila ni?" bedeutet "Wie viel kostet das?" - sehr nützlich beim Einkaufen!'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Wichtige Fragen bilden',
+      instruction: 'Fülle die Lücken mit den richtigen Fragewörtern.',
+      questionData: {
+        type: 'gap_fill',
+        text: '{gap} ang CR? (Wo ist die Toilette?) | {gap} ni? (Wie viel kostet das?) | {gap} ni? (Was ist das?)',
+        gaps: 3
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['Asa', 'Tagpila', 'Unsa']
+      },
+      explanation: '"Asa" = "Wo", "Tagpila" = "Wie viel", "Unsa" = "Was".'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Entschuldigung"?',
+      instruction: 'Wähle die richtige Entschuldigung aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Entschuldigung" auf Bisaya?',
+        options: ['Pasensya', 'Salamat', 'Palihug', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Pasensya" bedeutet "Entschuldigung" oder "Entschuldige bitte" - wichtig für höfliche Kommunikation.'
+    },
+    {
+      exerciseTypeId: 4, // transformation
+      title: 'Überlebenssätze übersetzen',
+      instruction: 'Übersetze den Satz ins Bisaya.',
+      questionData: {
+        type: 'transformation',
+        text: 'Ich spreche kein Bisaya',
+        sourceLanguage: 'Deutsch',
+        targetLanguage: 'Bisaya'
+      },
+      answerData: {
+        type: 'transformation',
+        correct: 'Dili ko mag-Bisaya',
+        alternatives: ['Wala ko mag-Bisaya', 'Dili ko makasabot Bisaya']
+      },
+      explanation: '"Dili ko mag-Bisaya" bedeutet "Ich spreche kein Bisaya" - nützlich, um zu erklären, dass du noch lernst.'
+    }
+  ],
+
+  // Auch für "Überlebenssätze - Teil 1" und "Überlebenssätze - Teil 2"
+  'Überlebenssätze - Teil 1': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Ich verstehe nicht"?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Ich verstehe nicht" auf Bisaya?',
+        options: ['Wala ko kasabot', 'Palihug', 'Salamat', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Wala ko kasabot" bedeutet "Ich verstehe nicht" - sehr wichtig für Anfänger!'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Kannst du das wiederholen?"?',
+      instruction: 'Wähle die richtige Bitte aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Kannst du das wiederholen?" auf Bisaya?',
+        options: ['Palihug ka mubalik?', 'Salamat', 'Maayo', 'Kumusta ka?']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Palihug ka mubalik?" bedeutet "Bitte kannst du wiederholen?" - essentiell für das Lernen!'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Wo ist...?"?',
+      instruction: 'Wähle die richtige Frage aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Wo ist die Toilette?" auf Bisaya?',
+        options: ['Asa ang CR?', 'Kumusta ka?', 'Salamat', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Asa ang CR?" bedeutet "Wo ist die Toilette?" - "Asa" = "Wo", "CR" = "Comfort Room" (Toilette).'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Überlebenssätze vervollständigen',
+      instruction: 'Fülle die Lücken mit den richtigen Bisaya-Wörtern.',
+      questionData: {
+        type: 'gap_fill',
+        text: '{gap} ko kasabot (Ich verstehe nicht). {gap} ka mubalik? (Bitte wiederholen)',
+        gaps: 2
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['Wala', 'Palihug']
+      },
+      explanation: '"Wala ko kasabot" = "Ich verstehe nicht", "Palihug ka mubalik?" = "Bitte wiederholen".'
+    }
+  ],
+
+  'Überlebenssätze - Teil 2': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Wie viel kostet das?"?',
+      instruction: 'Wähle die richtige Frage aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Wie viel kostet das?" auf Bisaya?',
+        options: ['Tagpila ni?', 'Asa ni?', 'Unsa ni?', 'Kinsa ni?']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Tagpila ni?" bedeutet "Wie viel kostet das?" - sehr nützlich beim Einkaufen!'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Entschuldigung"?',
+      instruction: 'Wähle die richtige Entschuldigung aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Entschuldigung" auf Bisaya?',
+        options: ['Pasensya', 'Salamat', 'Palihug', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Pasensya" bedeutet "Entschuldigung" oder "Entschuldige bitte" - wichtig für höfliche Kommunikation.'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Wichtige Fragen bilden',
+      instruction: 'Fülle die Lücken mit den richtigen Fragewörtern.',
+      questionData: {
+        type: 'gap_fill',
+        text: '{gap} ni? (Wie viel kostet das?) | {gap} ni? (Was ist das?) | {gap} lang (Bitte langsam)',
+        gaps: 3
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['Tagpila', 'Unsa', 'Hinay-hinay']
+      },
+      explanation: '"Tagpila" = "Wie viel", "Unsa" = "Was", "Hinay-hinay lang" = "Bitte langsam".'
+    },
+    {
+      exerciseTypeId: 4, // transformation
+      title: 'Überlebenssätze übersetzen',
+      instruction: 'Übersetze den Satz ins Bisaya.',
+      questionData: {
+        type: 'transformation',
+        text: 'Ich spreche kein Bisaya',
+        sourceLanguage: 'Deutsch',
+        targetLanguage: 'Bisaya'
+      },
+      answerData: {
+        type: 'transformation',
+        correct: 'Dili ko mag-Bisaya',
+        alternatives: ['Wala ko mag-Bisaya', 'Dili ko makasabot Bisaya']
+      },
+      explanation: '"Dili ko mag-Bisaya" bedeutet "Ich spreche kein Bisaya" - nützlich, um zu erklären, dass du noch lernst.'
+    }
+  ],
+
+  // Woche 1 - Wiederholung (Lektion 9)
+  'Woche 1 - Wiederholung': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wiederholung: Wie sagt man "Wie geht es dir?"?',
+      instruction: 'Wähle die richtige Begrüßung aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Wie geht es dir?" auf Bisaya?',
+        options: ['Kumusta ka?', 'Maayo', 'Salamat', 'Palihug']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Kumusta ka?" ist die Standard-Begrüßung auf Bisaya.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wiederholung: Wie sagt man "Mutter" auf Bisaya?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Mutter" auf Bisaya?',
+        options: ['Nanay', 'Tatay', 'Kuya', 'Ate']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Nanay" bedeutet "Mutter" auf Bisaya.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wiederholung: Was bedeutet "Palangga taka"?',
+      instruction: 'Wähle die richtige Bedeutung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Palangga taka"?',
+        options: ['Ich hab dich lieb', 'Danke', 'Guten Tag', 'Auf Wiedersehen']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Palangga taka" bedeutet "Ich hab dich lieb" - wärmer als "I love you" im Familienkontext.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wiederholung: Was fragt man mit "Nikaon ka?"?',
+      instruction: 'Wähle die richtige Bedeutung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Nikaon ka?"?',
+        options: ['Hast du schon gegessen?', 'Wie geht es dir?', 'Danke', 'Bitte']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Nikaon ka?" bedeutet "Hast du schon gegessen?" - typisch fürsorglich auf den Philippinen.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wiederholung: Wie sagt man "Ich verstehe nicht"?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Ich verstehe nicht" auf Bisaya?',
+        options: ['Wala ko kasabot', 'Salamat', 'Maayo', 'Palihug']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Wala ko kasabot" bedeutet "Ich verstehe nicht".'
+    }
+  ],
+
+  // Woche 1 - Vokabeltest (Lektion 10)
+  'Woche 1 - Vokabeltest': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Vokabeltest: Kumusta',
+      instruction: 'Was bedeutet "Kumusta"?',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Kumusta"?',
+        options: ['Wie geht es dir?', 'Danke', 'Bitte', 'Auf Wiedersehen']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Kumusta" kommt von spanisch "¿Cómo está?" - "Wie geht es dir?"'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Vokabeltest: Lola',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Lola"?',
+        options: ['Großmutter', 'Großvater', 'Mutter', 'Vater']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Lola" = Großmutter, "Lolo" = Großvater.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Vokabeltest: Salamat',
+      instruction: 'Wähle die richtige Bedeutung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Salamat"?',
+        options: ['Danke', 'Bitte', 'Entschuldigung', 'Gern geschehen']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Salamat" bedeutet "Danke".'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Vokabeltest: Lami',
+      instruction: 'Was bedeutet "Lami"?',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Lami"?',
+        options: ['Lecker', 'Viel', 'Gut', 'Schnell']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Lami" bedeutet "lecker" oder "schmackhaft" - wichtig beim Essen!'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Vokabeltest: Mingaw ko nimo',
+      instruction: 'Wähle die richtige Bedeutung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Mingaw ko nimo"?',
+        options: ['Ich vermisse dich', 'Ich freue mich', 'Ich mag dich', 'Ich liebe dich']
+      },
+      answerData: { type: 'multiple_choice', correctAnswer: 0 },
+      explanation: '"Mingaw ko nimo" bedeutet "Ich vermisse dich".'
+    }
+  ]
+};
+
+async function findOrCreateSystemUser() {
+  let systemUser = await User.findOne({ 
+    where: { 
+      username: 'system' 
+    } 
+  });
+
+  if (!systemUser) {
+    systemUser = await User.findOne({ 
+      where: { 
+        username: 'admin' 
+      } 
+    });
+  }
+
+  if (!systemUser) {
+    console.error('❌ System-Benutzer nicht gefunden.');
+    throw new Error('System user not found');
+  }
+
+  return systemUser;
+}
+
+function getExercisesForLesson(lessonTitle) {
+  // Suche nach exaktem Titel
+  if (BISAYA_EXERCISES[lessonTitle]) {
+    return BISAYA_EXERCISES[lessonTitle];
+  }
+  
+  // Fallback: Suche nach Teilstring
+  for (const [key, exercises] of Object.entries(BISAYA_EXERCISES)) {
+    if (lessonTitle.includes(key) || key.includes(lessonTitle)) {
+      return exercises;
+    }
+  }
+  
+  // Keine Übungen für unbekannte Lektionen (statt Dummy-Übungen)
+  return [];
+}
+
+async function createBisayaCourseContent() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  const systemUser = await findOrCreateSystemUser();
+  console.log(`Verwende System-Benutzer: ${systemUser.username} (ID: ${systemUser.id})\n`);
+
+  // Finde alle Bisaya-Kurse
+  const [bisayaLanguage] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    {
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  if (!bisayaLanguage) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const courses = await sequelize.query(
+    `SELECT id, title, owner_user_id AS "ownerUserId" FROM community.vocab_course WHERE language_id = :languageId`,
+    {
+      replacements: { languageId: bisayaLanguage.id },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`Gefunden: ${courses.length} Bisaya-Kurse\n`);
+
+  let totalExercisesAdded = 0;
+  let totalLessonsProcessed = 0;
+
+  for (const course of courses) {
+    console.log(`📚 Kurs: ${course.title} (ID: ${course.id})`);
+    
+    const lessons = await VocabCourseLesson.findAll({
+      where: { courseId: course.id },
+      order: [['lessonNumber', 'ASC']]
+    });
+
+    console.log(`   ${lessons.length} Lektionen gefunden\n`);
+
+    for (const lesson of lessons) {
+      const exercises = getExercisesForLesson(lesson.title);
+      if (exercises.length === 0) {
+        const existingCount = await VocabGrammarExercise.count({ where: { lessonId: lesson.id } });
+        if (existingCount > 0) {
+          console.log(`   ⏭️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - bereits ${existingCount} Übung(en) vorhanden`);
+        } else {
+          console.log(`   ⚠️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - keine Übungen definiert`);
+        }
+        continue;
+      }
+
+      // Bei Woche-1-Wiederholung/Vokabeltest: Alte Platzhalter entfernen und ersetzen
+      const replacePlaceholders = ['Woche 1 - Wiederholung', 'Woche 1 - Vokabeltest'].includes(lesson.title);
+      const existingCount = await VocabGrammarExercise.count({
+        where: { lessonId: lesson.id }
+      });
+
+      if (existingCount > 0 && !replacePlaceholders) {
+        console.log(`   ⏭️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - bereits ${existingCount} Übung(en) vorhanden`);
+        continue;
+      }
+
+      if (replacePlaceholders && existingCount > 0) {
+        const deleted = await VocabGrammarExercise.destroy({ where: { lessonId: lesson.id } });
+        console.log(`   🗑️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${deleted} Platzhalter entfernt`);
+      }
+      
+      // Erstelle Übungen
+      let exerciseNumber = 1;
+      for (const exerciseData of exercises) {
+        await VocabGrammarExercise.create({
+          lessonId: lesson.id,
+          exerciseTypeId: exerciseData.exerciseTypeId,
+          exerciseNumber: exerciseNumber++,
+          title: exerciseData.title,
+          instruction: exerciseData.instruction,
+          questionData: JSON.stringify(exerciseData.questionData),
+          answerData: JSON.stringify(exerciseData.answerData),
+          explanation: exerciseData.explanation,
+          createdByUserId: course.ownerUserId || systemUser.id
+        });
+        totalExercisesAdded++;
+      }
+
+      console.log(`   ✅ Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${exercises.length} Übung(en) erstellt`);
+      totalLessonsProcessed++;
+    }
+    
+    console.log('');
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${totalLessonsProcessed} Lektionen bearbeitet`);
+  console.log(`   ${totalExercisesAdded} Grammatik-Übungen erstellt`);
+}
+
+createBisayaCourseContent()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/create-bisaya-course.js

@@ -0,0 +1,309 @@
+#!/usr/bin/env node
+/**
+ * Script zum Erstellen eines vollständigen 4-Wochen Bisaya-Kurses
+ * 
+ * Verwendung:
+ * node backend/scripts/create-bisaya-course.js <languageId> <ownerHashedId>
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourse from '../models/community/vocab_course.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import User from '../models/community/user.js';
+import crypto from 'crypto';
+
+const LESSONS = [
+  // WOCHE 1: Grundlagen & Aussprache
+  { week: 1, day: 1, num: 1, type: 'conversation', title: 'Begrüßungen & Höflichkeit', 
+    desc: 'Lerne die wichtigsten Begrüßungen und Höflichkeitsformeln', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Philippiner schätzen Höflichkeit sehr. Lächeln ist wichtig!' },
+  
+  { week: 1, day: 1, num: 2, type: 'vocab', title: 'Überlebenssätze - Teil 1', 
+    desc: 'Die 10 wichtigsten Sätze für den Alltag', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: 'Diese Sätze helfen dir sofort im Alltag weiter.' },
+  
+  { week: 1, day: 2, num: 3, type: 'vocab', title: 'Familienwörter', 
+    desc: 'Mama, Papa, Kuya, Ate, Lola, Lolo und mehr', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: 'Kuya und Ate werden auch für Nicht-Verwandte verwendet – sehr respektvoll!' },
+  
+  { week: 1, day: 2, num: 4, type: 'conversation', title: 'Familien-Gespräche', 
+    desc: 'Einfache Gespräche mit Familienmitgliedern', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Familienkonversationen sind herzlicher als formelle Gespräche.' },
+  
+  { week: 1, day: 3, num: 5, type: 'conversation', title: 'Gefühle & Zuneigung', 
+    desc: 'Mingaw ko nimo, Palangga taka und mehr', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Palangga taka ist wärmer als "I love you" im Familienkontext.' },
+  
+  { week: 1, day: 3, num: 6, type: 'vocab', title: 'Überlebenssätze - Teil 2', 
+    desc: 'Weitere wichtige Alltagssätze', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 1, day: 4, num: 7, type: 'conversation', title: 'Essen & Fürsorge', 
+    desc: 'Nikaon ka? Kaon ta! Lami!', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Essen = Liebe! "Nikaon na ka?" ist sehr fürsorglich.' },
+  
+  { week: 1, day: 4, num: 8, type: 'vocab', title: 'Essen & Trinken', 
+    desc: 'Wichtige Wörter rund ums Essen', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 1, day: 5, num: 9, type: 'review', title: 'Woche 1 - Wiederholung', 
+    desc: 'Wiederhole alle Inhalte der ersten Woche', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: 'Wiederholung ist der Schlüssel zum Erfolg!' },
+  
+  { week: 1, day: 5, num: 10, type: 'vocab', title: 'Woche 1 - Vokabeltest', 
+    desc: 'Teste dein Wissen aus Woche 1', 
+    targetMin: 15, targetScore: 80, review: true,
+    cultural: null },
+
+  // WOCHE 2: Alltag & Familie
+  { week: 2, day: 1, num: 11, type: 'conversation', title: 'Alltagsgespräche - Teil 1', 
+    desc: 'Wie war dein Tag? Was machst du?', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Alltagsgespräche sind wichtig für echte Kommunikation.' },
+  
+  { week: 2, day: 1, num: 12, type: 'vocab', title: 'Haus & Familie', 
+    desc: 'Balay, Kwarto, Kusina, Pamilya', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 2, day: 2, num: 13, type: 'conversation', title: 'Alltagsgespräche - Teil 2', 
+    desc: 'Wohin gehst du? Was machst du heute?', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 2, day: 2, num: 14, type: 'vocab', title: 'Ort & Richtung', 
+    desc: 'Asa, dinhi, didto, padulong', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 2, day: 3, num: 15, type: 'grammar', title: 'Zeitformen - Grundlagen', 
+    desc: 'Ni-kaon ko, Mo-kaon ko - Vergangenheit und Zukunft', 
+    targetMin: 25, targetScore: 75, review: true,
+    cultural: 'Cebuano hat keine komplexen Zeiten wie Deutsch. Zeit wird mit Präfixen ausgedrückt.' },
+  
+  { week: 2, day: 3, num: 16, type: 'vocab', title: 'Zeit & Datum', 
+    desc: 'Karon, ugma, gahapon, karon adlaw', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 2, day: 4, num: 17, type: 'conversation', title: 'Einkaufen & Preise', 
+    desc: 'Tagpila ni? Pwede barato?', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Handeln ist in den Philippinen üblich und erwartet.' },
+  
+  { week: 2, day: 4, num: 18, type: 'vocab', title: 'Zahlen & Preise', 
+    desc: '1-100, Preise, Mengen', 
+    targetMin: 25, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 2, day: 5, num: 19, type: 'review', title: 'Woche 2 - Wiederholung', 
+    desc: 'Wiederhole alle Inhalte der zweiten Woche', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 2, day: 5, num: 20, type: 'vocab', title: 'Woche 2 - Vokabeltest', 
+    desc: 'Teste dein Wissen aus Woche 2', 
+    targetMin: 15, targetScore: 80, review: true,
+    cultural: null },
+
+  // WOCHE 3: Vertiefung
+  { week: 3, day: 1, num: 21, type: 'conversation', title: 'Gefühle & Emotionen', 
+    desc: 'Nalipay, nasubo, nahadlok, naguol', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Emotionen auszudrücken ist wichtig für echte Verbindung.' },
+  
+  { week: 3, day: 1, num: 22, type: 'vocab', title: 'Gefühle & Emotionen', 
+    desc: 'Wörter für verschiedene Gefühle', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 3, day: 2, num: 23, type: 'conversation', title: 'Gesundheit & Wohlbefinden', 
+    desc: 'Sakit, maayo, tambal, doktor', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 3, day: 2, num: 24, type: 'vocab', title: 'Körper & Gesundheit', 
+    desc: 'Wörter rund um den Körper und Gesundheit', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 3, day: 3, num: 25, type: 'grammar', title: 'Höflichkeitsformen', 
+    desc: 'Palihug, Pwede, Tabang', 
+    targetMin: 20, targetScore: 75, review: true,
+    cultural: 'Höflichkeit ist extrem wichtig in der philippinischen Kultur.' },
+  
+  { week: 3, day: 3, num: 26, type: 'conversation', title: 'Bitten & Fragen', 
+    desc: 'Wie man höflich fragt und bittet', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 3, day: 4, num: 27, type: 'conversation', title: 'Kinder & Familie', 
+    desc: 'Gespräche mit und über Kinder', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Kinder sind sehr wichtig in philippinischen Familien.' },
+  
+  { week: 3, day: 4, num: 28, type: 'vocab', title: 'Kinder & Spiel', 
+    desc: 'Wörter für Kinder und Spielsachen', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 3, day: 5, num: 29, type: 'review', title: 'Woche 3 - Wiederholung', 
+    desc: 'Wiederhole alle Inhalte der dritten Woche', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 3, day: 5, num: 30, type: 'vocab', title: 'Woche 3 - Vokabeltest', 
+    desc: 'Teste dein Wissen aus Woche 3', 
+    targetMin: 15, targetScore: 80, review: true,
+    cultural: null },
+
+  // WOCHE 4: Freies Sprechen
+  { week: 4, day: 1, num: 31, type: 'conversation', title: 'Freies Gespräch - Thema 1', 
+    desc: 'Übe freies Sprechen zu verschiedenen Themen', 
+    targetMin: 20, targetScore: 75, review: false,
+    cultural: 'Fehler sind okay! Philippiner schätzen das Bemühen.' },
+  
+  { week: 4, day: 1, num: 32, type: 'vocab', title: 'Wiederholung - Woche 1 & 2', 
+    desc: 'Wiederhole wichtige Vokabeln aus den ersten beiden Wochen', 
+    targetMin: 25, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 4, day: 2, num: 33, type: 'conversation', title: 'Freies Gespräch - Thema 2', 
+    desc: 'Weitere Übung im freien Sprechen', 
+    targetMin: 20, targetScore: 75, review: false,
+    cultural: null },
+  
+  { week: 4, day: 2, num: 34, type: 'vocab', title: 'Wiederholung - Woche 3', 
+    desc: 'Wiederhole wichtige Vokabeln aus Woche 3', 
+    targetMin: 25, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 4, day: 3, num: 35, type: 'conversation', title: 'Komplexere Gespräche', 
+    desc: 'Längere Gespräche zu verschiedenen Themen', 
+    targetMin: 25, targetScore: 75, review: false,
+    cultural: 'Je mehr du sprichst, desto besser wirst du!' },
+  
+  { week: 4, day: 3, num: 36, type: 'review', title: 'Gesamtwiederholung', 
+    desc: 'Wiederhole alle wichtigen Inhalte des Kurses', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 4, day: 4, num: 37, type: 'conversation', title: 'Praktische Übung', 
+    desc: 'Simuliere echte Gesprächssituationen', 
+    targetMin: 25, targetScore: 75, review: false,
+    cultural: null },
+  
+  { week: 4, day: 4, num: 38, type: 'vocab', title: 'Abschlusstest - Vokabeln', 
+    desc: 'Finaler Vokabeltest über den gesamten Kurs', 
+    targetMin: 20, targetScore: 80, review: true,
+    cultural: null },
+  
+  { week: 4, day: 5, num: 39, type: 'review', title: 'Abschlussprüfung', 
+    desc: 'Finale Prüfung über alle Kursinhalte', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: 'Gratulation zum Abschluss des Kurses!' },
+  
+  { week: 4, day: 5, num: 40, type: 'culture', title: 'Kulturelle Tipps & Tricks', 
+    desc: 'Wichtige kulturelle Hinweise für den Alltag', 
+    targetMin: 15, targetScore: 0, review: false,
+    cultural: 'Kulturelles Verständnis ist genauso wichtig wie die Sprache selbst.' }
+];
+
+async function createBisayaCourse(languageId, ownerHashedId) {
+  try {
+    // Finde User
+    const user = await User.findOne({ where: { hashedId: ownerHashedId } });
+    if (!user) {
+      throw new Error(`User mit hashedId ${ownerHashedId} nicht gefunden`);
+    }
+
+    // Prüfe, ob Sprache existiert
+    const [lang] = await sequelize.query(
+      `SELECT id FROM community.vocab_language WHERE id = :langId`,
+      { replacements: { langId: languageId }, type: sequelize.QueryTypes.SELECT }
+    );
+    if (!lang) {
+      throw new Error(`Sprache mit ID ${languageId} nicht gefunden`);
+    }
+
+    // Erstelle Kurs
+    const shareCode = crypto.randomBytes(8).toString('hex');
+    const course = await VocabCourse.create({
+      ownerUserId: user.id,
+      title: 'Bisaya für Familien - Schnellstart in 4 Wochen',
+      description: 'Lerne Bisaya (Cebuano) schnell und praktisch für den Familienalltag. Fokus auf Sprechen & Hören mit strukturiertem 4-Wochen-Plan.',
+      languageId: Number(languageId),
+      difficultyLevel: 1,
+      isPublic: true,
+      shareCode
+    });
+
+    console.log(`✅ Kurs erstellt: ${course.id} - "${course.title}"`);
+    console.log(`   Share-Code: ${shareCode}`);
+
+    // Erstelle Lektionen
+    for (const lessonData of LESSONS) {
+      const lesson = await VocabCourseLesson.create({
+        courseId: course.id,
+        chapterId: null, // Wird später mit Vokabeln verknüpft
+        lessonNumber: lessonData.num,
+        title: lessonData.title,
+        description: lessonData.desc,
+        weekNumber: lessonData.week,
+        dayNumber: lessonData.day,
+        lessonType: lessonData.type,
+        culturalNotes: lessonData.cultural,
+        targetMinutes: lessonData.targetMin,
+        targetScorePercent: lessonData.targetScore,
+        requiresReview: lessonData.review
+      });
+      console.log(`   ✅ Lektion ${lessonData.num}: ${lessonData.title} (Woche ${lessonData.week}, Tag ${lessonData.day})`);
+    }
+
+    console.log(`\n🎉 Kurs erfolgreich erstellt mit ${LESSONS.length} Lektionen!`);
+    console.log(`\n📊 Kurs-Statistik:`);
+    console.log(`   - Gesamte Lektionen: ${LESSONS.length}`);
+    console.log(`   - Vokabel-Lektionen: ${LESSONS.filter(l => l.type === 'vocab').length}`);
+    console.log(`   - Konversations-Lektionen: ${LESSONS.filter(l => l.type === 'conversation').length}`);
+    console.log(`   - Grammatik-Lektionen: ${LESSONS.filter(l => l.type === 'grammar').length}`);
+    console.log(`   - Wiederholungs-Lektionen: ${LESSONS.filter(l => l.type === 'review').length}`);
+    console.log(`   - Durchschnittliche Zeit pro Tag: ~${Math.round(LESSONS.reduce((sum, l) => sum + l.targetMin, 0) / (4 * 5))} Minuten`);
+    console.log(`\n💡 Nächste Schritte:`);
+    console.log(`   1. Füge Vokabeln zu den Vokabel-Lektionen hinzu`);
+    console.log(`   2. Erstelle Grammatik-Übungen für die Grammatik-Lektionen`);
+    console.log(`   3. Teile den Kurs mit anderen (Share-Code: ${shareCode})`);
+
+    return course;
+  } catch (error) {
+    console.error('❌ Fehler beim Erstellen des Kurses:', error);
+    throw error;
+  }
+}
+
+// CLI-Aufruf
+const languageId = process.argv[2];
+const ownerHashedId = process.argv[3];
+
+if (!languageId || !ownerHashedId) {
+  console.error('Verwendung: node create-bisaya-course.js <languageId> <ownerHashedId>');
+  console.error('Beispiel: node create-bisaya-course.js 1 abc123def456');
+  process.exit(1);
+}
+
+createBisayaCourse(languageId, ownerHashedId)
+  .then(() => {
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error(error);
+    process.exit(1);
+  });

backend/scripts/create-language-courses.js

@@ -0,0 +1,557 @@
+#!/usr/bin/env node
+/**
+ * Script zum Erstellen von öffentlichen Sprachkursen für verschiedene Sprachen
+ * 
+ * Verwendung:
+ * node backend/scripts/create-language-courses.js
+ * 
+ * Erstellt öffentliche Kurse für alle Kombinationen von:
+ * - Zielsprachen: Bisaya, Französisch, Spanisch, Latein, Italienisch, Portugiesisch, Tagalog
+ * - Muttersprachen: Deutsch, Englisch, Spanisch, Französisch, Italienisch, Portugiesisch
+ * 
+ * Die Kurse werden automatisch einem System-Benutzer zugeordnet und sind öffentlich zugänglich.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourse from '../models/community/vocab_course.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import User from '../models/community/user.js';
+import crypto from 'crypto';
+import bcrypt from 'bcryptjs';
+
+// Kursstruktur für alle Sprachen (4 Wochen, 40 Lektionen)
+const LESSON_TEMPLATE = [
+  // WOCHE 1: Grundlagen & Aussprache
+  { week: 1, day: 1, num: 1, type: 'conversation', title: 'Begrüßungen & Höflichkeit', 
+    desc: 'Lerne die wichtigsten Begrüßungen und Höflichkeitsformeln', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Höflichkeit ist wichtig. Lächeln hilft!' },
+  
+  { week: 1, day: 1, num: 2, type: 'vocab', title: 'Überlebenssätze - Teil 1', 
+    desc: 'Die 10 wichtigsten Sätze für den Alltag', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: 'Diese Sätze helfen dir sofort im Alltag weiter.' },
+  
+  { week: 1, day: 2, num: 3, type: 'vocab', title: 'Familienwörter', 
+    desc: 'Mama, Papa, Geschwister, Großeltern und mehr', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: 'Familienwörter sind wichtig für echte Gespräche.' },
+  
+  { week: 1, day: 2, num: 4, type: 'conversation', title: 'Familien-Gespräche', 
+    desc: 'Einfache Gespräche mit Familienmitgliedern', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Familienkonversationen sind herzlicher als formelle Gespräche.' },
+  
+  { week: 1, day: 3, num: 5, type: 'conversation', title: 'Gefühle & Zuneigung', 
+    desc: 'Wie man Gefühle ausdrückt', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Gefühle auszudrücken ist wichtig für echte Verbindung.' },
+  
+  { week: 1, day: 3, num: 6, type: 'vocab', title: 'Überlebenssätze - Teil 2', 
+    desc: 'Weitere wichtige Alltagssätze', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 1, day: 4, num: 7, type: 'conversation', title: 'Essen & Fürsorge', 
+    desc: 'Gespräche rund ums Essen', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Essen verbindet Menschen überall auf der Welt.' },
+  
+  { week: 1, day: 4, num: 8, type: 'vocab', title: 'Essen & Trinken', 
+    desc: 'Wichtige Wörter rund ums Essen', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 1, day: 5, num: 9, type: 'review', title: 'Woche 1 - Wiederholung', 
+    desc: 'Wiederhole alle Inhalte der ersten Woche', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: 'Wiederholung ist der Schlüssel zum Erfolg!' },
+  
+  { week: 1, day: 5, num: 10, type: 'vocab', title: 'Woche 1 - Vokabeltest', 
+    desc: 'Teste dein Wissen aus Woche 1', 
+    targetMin: 15, targetScore: 80, review: true,
+    cultural: null },
+
+  // WOCHE 2: Alltag & Familie
+  { week: 2, day: 1, num: 11, type: 'conversation', title: 'Alltagsgespräche - Teil 1', 
+    desc: 'Wie war dein Tag? Was machst du?', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Alltagsgespräche sind wichtig für echte Kommunikation.' },
+  
+  { week: 2, day: 1, num: 12, type: 'vocab', title: 'Haus & Familie', 
+    desc: 'Wörter für Haus, Zimmer, Familie', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 2, day: 2, num: 13, type: 'conversation', title: 'Alltagsgespräche - Teil 2', 
+    desc: 'Wohin gehst du? Was machst du heute?', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 2, day: 2, num: 14, type: 'vocab', title: 'Ort & Richtung', 
+    desc: 'Wo, hier, dort, gehen zu', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 2, day: 3, num: 15, type: 'grammar', title: 'Zeitformen - Grundlagen', 
+    desc: 'Vergangenheit, Gegenwart, Zukunft', 
+    targetMin: 25, targetScore: 75, review: true,
+    cultural: 'Zeitformen sind wichtig für präzise Kommunikation.' },
+  
+  { week: 2, day: 3, num: 16, type: 'vocab', title: 'Zeit & Datum', 
+    desc: 'Jetzt, morgen, gestern, heute', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 2, day: 4, num: 17, type: 'conversation', title: 'Einkaufen & Preise', 
+    desc: 'Wie viel kostet das? Kann es billiger sein?', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Einkaufen ist eine wichtige Alltagssituation.' },
+  
+  { week: 2, day: 4, num: 18, type: 'vocab', title: 'Zahlen & Preise', 
+    desc: 'Zahlen 1-100, Preise, Mengen', 
+    targetMin: 25, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 2, day: 5, num: 19, type: 'review', title: 'Woche 2 - Wiederholung', 
+    desc: 'Wiederhole alle Inhalte der zweiten Woche', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 2, day: 5, num: 20, type: 'vocab', title: 'Woche 2 - Vokabeltest', 
+    desc: 'Teste dein Wissen aus Woche 2', 
+    targetMin: 15, targetScore: 80, review: true,
+    cultural: null },
+
+  // WOCHE 3: Vertiefung
+  { week: 3, day: 1, num: 21, type: 'conversation', title: 'Gefühle & Emotionen', 
+    desc: 'Wie man verschiedene Gefühle ausdrückt', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Emotionen auszudrücken ist wichtig für echte Verbindung.' },
+  
+  { week: 3, day: 1, num: 22, type: 'vocab', title: 'Gefühle & Emotionen', 
+    desc: 'Wörter für verschiedene Gefühle', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 3, day: 2, num: 23, type: 'conversation', title: 'Gesundheit & Wohlbefinden', 
+    desc: 'Gespräche über Gesundheit', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 3, day: 2, num: 24, type: 'vocab', title: 'Körper & Gesundheit', 
+    desc: 'Wörter rund um den Körper und Gesundheit', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 3, day: 3, num: 25, type: 'grammar', title: 'Höflichkeitsformen', 
+    desc: 'Wie man höflich spricht', 
+    targetMin: 20, targetScore: 75, review: true,
+    cultural: 'Höflichkeit ist extrem wichtig in jeder Kultur.' },
+  
+  { week: 3, day: 3, num: 26, type: 'conversation', title: 'Bitten & Fragen', 
+    desc: 'Wie man höflich fragt und bittet', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 3, day: 4, num: 27, type: 'conversation', title: 'Kinder & Familie', 
+    desc: 'Gespräche mit und über Kinder', 
+    targetMin: 15, targetScore: 80, review: false,
+    cultural: 'Kinder sind sehr wichtig in Familien.' },
+  
+  { week: 3, day: 4, num: 28, type: 'vocab', title: 'Kinder & Spiel', 
+    desc: 'Wörter für Kinder und Spielsachen', 
+    targetMin: 20, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 3, day: 5, num: 29, type: 'review', title: 'Woche 3 - Wiederholung', 
+    desc: 'Wiederhole alle Inhalte der dritten Woche', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 3, day: 5, num: 30, type: 'vocab', title: 'Woche 3 - Vokabeltest', 
+    desc: 'Teste dein Wissen aus Woche 3', 
+    targetMin: 15, targetScore: 80, review: true,
+    cultural: null },
+
+  // WOCHE 4: Freies Sprechen
+  { week: 4, day: 1, num: 31, type: 'conversation', title: 'Freies Gespräch - Thema 1', 
+    desc: 'Übe freies Sprechen zu verschiedenen Themen', 
+    targetMin: 20, targetScore: 75, review: false,
+    cultural: 'Fehler sind okay! Muttersprachler schätzen das Bemühen.' },
+  
+  { week: 4, day: 1, num: 32, type: 'vocab', title: 'Wiederholung - Woche 1 & 2', 
+    desc: 'Wiederhole wichtige Vokabeln aus den ersten beiden Wochen', 
+    targetMin: 25, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 4, day: 2, num: 33, type: 'conversation', title: 'Freies Gespräch - Thema 2', 
+    desc: 'Weitere Übung im freien Sprechen', 
+    targetMin: 20, targetScore: 75, review: false,
+    cultural: null },
+  
+  { week: 4, day: 2, num: 34, type: 'vocab', title: 'Wiederholung - Woche 3', 
+    desc: 'Wiederhole wichtige Vokabeln aus Woche 3', 
+    targetMin: 25, targetScore: 85, review: true,
+    cultural: null },
+  
+  { week: 4, day: 3, num: 35, type: 'conversation', title: 'Komplexere Gespräche', 
+    desc: 'Längere Gespräche zu verschiedenen Themen', 
+    targetMin: 25, targetScore: 75, review: false,
+    cultural: 'Je mehr du sprichst, desto besser wirst du!' },
+  
+  { week: 4, day: 3, num: 36, type: 'review', title: 'Gesamtwiederholung', 
+    desc: 'Wiederhole alle wichtigen Inhalte des Kurses', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: null },
+  
+  { week: 4, day: 4, num: 37, type: 'conversation', title: 'Praktische Übung', 
+    desc: 'Simuliere echte Gesprächssituationen', 
+    targetMin: 25, targetScore: 75, review: false,
+    cultural: null },
+  
+  { week: 4, day: 4, num: 38, type: 'vocab', title: 'Abschlusstest - Vokabeln', 
+    desc: 'Finaler Vokabeltest über den gesamten Kurs', 
+    targetMin: 20, targetScore: 80, review: true,
+    cultural: null },
+  
+  { week: 4, day: 5, num: 39, type: 'review', title: 'Abschlussprüfung', 
+    desc: 'Finale Prüfung über alle Kursinhalte', 
+    targetMin: 30, targetScore: 80, review: false,
+    cultural: 'Gratulation zum Abschluss des Kurses!' },
+  
+  { week: 4, day: 5, num: 40, type: 'culture', title: 'Kulturelle Tipps & Tricks', 
+    desc: 'Wichtige kulturelle Hinweise für den Alltag', 
+    targetMin: 15, targetScore: 0, review: false,
+    cultural: 'Kulturelles Verständnis ist genauso wichtig wie die Sprache selbst.' }
+];
+
+// Zielsprachen (die zu lernenden Sprachen)
+const TARGET_LANGUAGES = [
+  'Bisaya',
+  'Französisch',
+  'Spanisch',
+  'Latein',
+  'Italienisch',
+  'Portugiesisch',
+  'Tagalog'
+];
+
+// Muttersprachen (für die Kurse erstellt werden)
+const NATIVE_LANGUAGES = [
+  'Deutsch',
+  'Englisch',
+  'Spanisch',
+  'Französisch',
+  'Italienisch',
+  'Portugiesisch'
+];
+
+// Generiere Kurskonfigurationen für alle Kombinationen
+function generateCourseConfigs() {
+  const configs = [];
+  
+  for (const targetLang of TARGET_LANGUAGES) {
+    for (const nativeLang of NATIVE_LANGUAGES) {
+      // Überspringe, wenn Zielsprache = Muttersprache
+      if (targetLang === nativeLang) continue;
+      
+      const title = `${targetLang} für ${nativeLang}sprachige - Schnellstart in 4 Wochen`;
+      let description = `Lerne ${targetLang} schnell und praktisch für den Alltag. `;
+      
+      if (targetLang === 'Latein') {
+        description = `Lerne ${targetLang} systematisch mit Fokus auf Grammatik und Vokabular. `;
+      } else if (targetLang === 'Bisaya') {
+        description = `Lerne ${targetLang} (Cebuano) schnell und praktisch für den Familienalltag. `;
+      }
+      
+      description += `Fokus auf Sprechen & Hören mit strukturiertem 4-Wochen-Plan.`;
+      
+      configs.push({
+        targetLanguageName: targetLang,
+        nativeLanguageName: nativeLang,
+        title,
+        description,
+        difficultyLevel: 1
+      });
+    }
+  }
+  
+  return configs;
+}
+
+const LANGUAGE_COURSES = generateCourseConfigs();
+
+async function findOrCreateLanguage(languageName, ownerUserId) {
+  // Suche zuerst nach vorhandener Sprache
+  const [existing] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = :name LIMIT 1`,
+    {
+      replacements: { name: languageName },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  if (existing) {
+    console.log(`   ✅ Sprache "${languageName}" bereits vorhanden (ID: ${existing.id})`);
+    return existing.id;
+  }
+
+  // Erstelle neue Sprache
+  const shareCode = crypto.randomBytes(8).toString('hex');
+  const [created] = await sequelize.query(
+    `INSERT INTO community.vocab_language (owner_user_id, name, share_code) 
+     VALUES (:ownerUserId, :name, :shareCode) 
+     RETURNING id`,
+    {
+      replacements: { ownerUserId, name: languageName, shareCode },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`   ✅ Sprache "${languageName}" erstellt (ID: ${created.id})`);
+  return created.id;
+}
+
+async function createCourseForLanguage(targetLanguageId, nativeLanguageId, languageConfig, ownerUserId) {
+  const shareCode = crypto.randomBytes(8).toString('hex');
+  
+  const course = await VocabCourse.create({
+    ownerUserId,
+    title: languageConfig.title,
+    description: languageConfig.description,
+    languageId: Number(targetLanguageId),
+    nativeLanguageId: nativeLanguageId ? Number(nativeLanguageId) : null,
+    difficultyLevel: languageConfig.difficultyLevel || 1,
+    isPublic: true,
+    shareCode
+  });
+
+  console.log(`   ✅ Kurs erstellt: "${course.title}" (ID: ${course.id}, Share-Code: ${shareCode})`);
+
+  // Erstelle Lektionen
+  const createdLessons = [];
+  for (const lessonData of LESSON_TEMPLATE) {
+    const lesson = await VocabCourseLesson.create({
+      courseId: course.id,
+      chapterId: null,
+      lessonNumber: lessonData.num,
+      title: lessonData.title,
+      description: lessonData.desc,
+      weekNumber: lessonData.week,
+      dayNumber: lessonData.day,
+      lessonType: lessonData.type,
+      culturalNotes: lessonData.cultural,
+      targetMinutes: lessonData.targetMin,
+      targetScorePercent: lessonData.targetScore,
+      requiresReview: lessonData.review
+    });
+    createdLessons.push({ lesson, lessonData });
+  }
+
+  console.log(`   ✅ ${LESSON_TEMPLATE.length} Lektionen erstellt`);
+
+  // Erstelle Beispiel-Grammatik-Übungen für Grammar-Lektionen
+  let grammarExerciseCount = 0;
+  for (const { lesson, lessonData } of createdLessons) {
+    if (lessonData.type === 'grammar') {
+      // Erstelle 2-3 Beispiel-Übungen für jede Grammar-Lektion
+      const exercises = createExampleGrammarExercises(lesson.id, lessonData, ownerUserId);
+      for (const exercise of exercises) {
+        await VocabGrammarExercise.create(exercise);
+        grammarExerciseCount++;
+      }
+    }
+  }
+
+  if (grammarExerciseCount > 0) {
+    console.log(`   ✅ ${grammarExerciseCount} Grammatik-Übungen erstellt`);
+  }
+
+  return course;
+}
+
+// Erstelle Beispiel-Grammatik-Übungen für eine Grammar-Lektion
+function createExampleGrammarExercises(lessonId, lessonData, ownerUserId) {
+  const exercises = [];
+  
+  // Beispiel-Übung 1: Gap Fill (Lückentext)
+  exercises.push({
+    lessonId: lessonId,
+    exerciseTypeId: 1, // gap_fill
+    exerciseNumber: 1,
+    title: `${lessonData.title} - Übung 1`,
+    instruction: 'Fülle die Lücken mit den richtigen Wörtern.',
+    questionData: JSON.stringify({
+      type: 'gap_fill',
+      text: 'Hallo! Wie geht es {gap}? Mir geht es {gap}, danke!',
+      gaps: 2
+    }),
+    answerData: JSON.stringify({
+      type: 'gap_fill',
+      answers: ['dir', 'gut']
+    }),
+    explanation: 'Die richtigen Antworten sind "dir" und "gut".',
+    createdByUserId: ownerUserId
+  });
+
+  // Beispiel-Übung 2: Multiple Choice
+  exercises.push({
+    lessonId: lessonId,
+    exerciseTypeId: 2, // multiple_choice
+    exerciseNumber: 2,
+    title: `${lessonData.title} - Übung 2`,
+    instruction: 'Wähle die richtige Antwort aus.',
+    questionData: JSON.stringify({
+      type: 'multiple_choice',
+      question: 'Wie sagt man "Guten Tag" auf ' + lessonData.title.split(' - ')[0] + '?',
+      options: ['Option A', 'Option B', 'Option C', 'Option D']
+    }),
+    answerData: JSON.stringify({
+      type: 'multiple_choice',
+      correctAnswer: 0
+    }),
+    explanation: 'Die richtige Antwort ist Option A.',
+    createdByUserId: ownerUserId
+  });
+
+  return exercises;
+}
+
+async function findOrCreateSystemUser() {
+  // Versuche zuerst einen System-Benutzer zu finden (z.B. mit username "system" oder "admin")
+  let systemUser = await User.findOne({ 
+    where: { 
+      username: 'system' 
+    } 
+  });
+
+  if (!systemUser) {
+    // Versuche Admin-Benutzer
+    systemUser = await User.findOne({ 
+      where: { 
+        username: 'admin' 
+      } 
+    });
+  }
+
+  if (!systemUser) {
+    // Erstelle einen System-Benutzer
+    console.log('   ℹ️  Erstelle System-Benutzer für öffentliche Kurse...');
+    const saltRounds = 10;
+    const randomPassword = crypto.randomBytes(32).toString('hex');
+    const hashedPassword = await bcrypt.hash(randomPassword, saltRounds);
+    
+    systemUser = await User.create({
+      username: 'system',
+      email: 'system@your-part.de',
+      password: hashedPassword,
+      active: true,
+      registrationDate: new Date()
+    });
+    
+    // hashedId wird automatisch vom Hook gesetzt, aber warte kurz darauf
+    await systemUser.reload();
+    console.log(`   ✅ System-Benutzer erstellt (ID: ${systemUser.id}, hashedId: ${systemUser.hashedId})`);
+  } else {
+    console.log(`   ✅ System-Benutzer gefunden (ID: ${systemUser.id}, Username: ${systemUser.username})`);
+  }
+
+  return systemUser;
+}
+
+async function createAllLanguageCourses() {
+  try {
+    // Finde oder erstelle System-Benutzer
+    const systemUser = await findOrCreateSystemUser();
+
+    console.log(`\n🚀 Erstelle öffentliche Sprachkurse (Besitzer: System-Benutzer ID ${systemUser.id})\n`);
+
+    const createdCourses = [];
+
+    // Stelle sicher, dass alle benötigten Sprachen existieren
+    console.log(`\n🌍 Stelle sicher, dass alle Sprachen existieren...`);
+    const allLanguages = [...new Set([...TARGET_LANGUAGES, ...NATIVE_LANGUAGES])];
+    const languageMap = new Map();
+    
+    for (const langName of allLanguages) {
+      const langId = await findOrCreateLanguage(langName, systemUser.id);
+      languageMap.set(langName, langId);
+    }
+
+    for (const langConfig of LANGUAGE_COURSES) {
+      console.log(`\n📚 Verarbeite: ${langConfig.targetLanguageName} für ${langConfig.nativeLanguageName}sprachige`);
+      
+      const targetLanguageId = languageMap.get(langConfig.targetLanguageName);
+      const nativeLanguageId = languageMap.get(langConfig.nativeLanguageName);
+      
+      // Prüfe, ob Kurs bereits existiert (unabhängig vom Besitzer, wenn öffentlich)
+      const existingCourse = await VocabCourse.findOne({
+        where: {
+          languageId: targetLanguageId,
+          nativeLanguageId: nativeLanguageId,
+          isPublic: true
+        }
+      });
+
+      if (existingCourse) {
+        console.log(`   ⚠️  Kurs "${langConfig.title}" existiert bereits (ID: ${existingCourse.id})`);
+        createdCourses.push({ 
+          ...langConfig, 
+          courseId: existingCourse.id, 
+          targetLanguageId, 
+          nativeLanguageId, 
+          skipped: true 
+        });
+        continue;
+      }
+
+      // Erstelle Kurs
+      const course = await createCourseForLanguage(targetLanguageId, nativeLanguageId, langConfig, systemUser.id);
+      createdCourses.push({ 
+        ...langConfig, 
+        courseId: course.id, 
+        targetLanguageId, 
+        nativeLanguageId, 
+        shareCode: course.shareCode 
+      });
+    }
+
+    console.log(`\n\n🎉 Zusammenfassung:\n`);
+    console.log(`   Gesamt: ${LANGUAGE_COURSES.length} Sprachen`);
+    console.log(`   Erstellt: ${createdCourses.filter(c => !c.skipped).length} Kurse`);
+    console.log(`   Übersprungen: ${createdCourses.filter(c => c.skipped).length} Kurse`);
+    
+    console.log(`\n📋 Erstellte Kurse:\n`);
+    for (const course of createdCourses) {
+      if (course.skipped) {
+        console.log(`   ⚠️  ${course.languageName}: Bereits vorhanden (ID: ${course.courseId})`);
+      } else {
+        console.log(`   ✅ ${course.languageName}: ${course.title}`);
+        console.log(`      Share-Code: ${course.shareCode}`);
+      }
+    }
+
+    console.log(`\n💡 Nächste Schritte:`);
+    console.log(`   1. Füge Vokabeln zu den Vokabel-Lektionen hinzu`);
+    console.log(`   2. Erstelle Grammatik-Übungen für die Grammatik-Lektionen`);
+    console.log(`   3. Teile die Kurse mit anderen (Share-Codes oben)`);
+
+    return createdCourses;
+  } catch (error) {
+    console.error('❌ Fehler beim Erstellen der Kurse:', error);
+    throw error;
+  }
+}
+
+// CLI-Aufruf
+// Keine Parameter mehr nötig - verwendet automatisch System-Benutzer
+createAllLanguageCourses()
+  .then(() => {
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error(error);
+    process.exit(1);
+  });

backend/scripts/delete-all-family-words-exercises.js

@@ -0,0 +1,88 @@
+#!/usr/bin/env node
+/**
+ * Script zum Löschen ALLER "Familienwörter"-Übungen aus Bisaya-Kursen
+ * 
+ * Verwendung:
+ * node backend/scripts/delete-all-family-words-exercises.js
+ * 
+ * Löscht alle Grammatik-Übungen von "Familienwörter"-Lektionen, um Platz für neue zu schaffen.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+
+async function deleteAllFamilyWordsExercises() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  // Finde alle Bisaya-Kurse
+  const [bisayaLanguage] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    {
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  if (!bisayaLanguage) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const courses = await sequelize.query(
+    `SELECT id, title FROM community.vocab_course WHERE language_id = :languageId`,
+    {
+      replacements: { languageId: bisayaLanguage.id },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`Gefunden: ${courses.length} Bisaya-Kurse\n`);
+
+  let totalDeleted = 0;
+  let totalLessons = 0;
+
+  for (const course of courses) {
+    console.log(`📚 Kurs: ${course.title} (ID: ${course.id})`);
+    
+    // Finde "Familienwörter"-Lektionen
+    const lessons = await VocabCourseLesson.findAll({
+      where: { 
+        courseId: course.id,
+        title: 'Familienwörter'
+      },
+      order: [['lessonNumber', 'ASC']]
+    });
+
+    console.log(`   ${lessons.length} "Familienwörter"-Lektionen gefunden`);
+
+    for (const lesson of lessons) {
+      // Lösche ALLE bestehenden Übungen
+      const deletedCount = await VocabGrammarExercise.destroy({
+        where: { lessonId: lesson.id }
+      });
+
+      console.log(`   🗑️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${deletedCount} Übung(en) gelöscht`);
+      totalDeleted += deletedCount;
+      totalLessons++;
+    }
+    
+    console.log('');
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${totalLessons} Lektionen bearbeitet`);
+  console.log(`   ${totalDeleted} Übungen gelöscht`);
+  console.log(`\n💡 Hinweis: Führe jetzt das update-family-words-exercises.js Script aus, um neue Übungen zu erstellen.`);
+}
+
+deleteAllFamilyWordsExercises()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/fix-begruessungen-gap-fill.js

@@ -0,0 +1,89 @@
+#!/usr/bin/env node
+/**
+ * Script zum Korrigieren der Gap-Fill-Übung in "Begrüßungen & Höflichkeit"
+ * Fügt Muttersprache-Hinweise hinzu, damit Vokabeln korrekt extrahiert werden können
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import VocabCourse from '../models/community/vocab_course.js';
+
+async function fixBegruessungenGapFill() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  // Finde alle "Begrüßungen & Höflichkeit" Lektionen
+  const lessons = await VocabCourseLesson.findAll({
+    where: { title: 'Begrüßungen & Höflichkeit' },
+    include: [{ model: VocabCourse, as: 'course' }]
+  });
+
+  console.log(`Gefunden: ${lessons.length} "Begrüßungen & Höflichkeit"-Lektionen\n`);
+
+  let totalUpdated = 0;
+
+  for (const lesson of lessons) {
+    console.log(`📚 Kurs: ${lesson.course.title} (Kurs-ID: ${lesson.course.id}, Lektion-ID: ${lesson.id})`);
+
+    // Finde Gap-Fill-Übung mit "ko" als Antwort
+    const exercises = await VocabGrammarExercise.findAll({
+      where: {
+        lessonId: lesson.id,
+        exerciseTypeId: 1 // gap_fill
+      }
+    });
+
+    for (const exercise of exercises) {
+      const qData = typeof exercise.questionData === 'string' 
+        ? JSON.parse(exercise.questionData) 
+        : exercise.questionData;
+      const aData = typeof exercise.answerData === 'string' 
+        ? JSON.parse(exercise.answerData) 
+        : exercise.answerData;
+
+      // Prüfe ob es die problematische Übung ist (enthält "ko" als Antwort ohne Muttersprache-Hinweis)
+      if (aData.answers && aData.answers.includes('ko')) {
+        const text = qData.text || '';
+        
+        // Prüfe ob Muttersprache-Hinweise fehlen
+        if (!text.includes('(ich)') && !text.includes('(I)')) {
+          console.log(`   🔧 Korrigiere Übung "${exercise.title}" (ID: ${exercise.id})`);
+          
+          // Korrigiere den Text
+          const correctedText = text.replace(
+            'Maayo {gap}.',
+            'Maayo {gap} (ich).'
+          );
+          
+          qData.text = correctedText;
+          
+          await exercise.update({
+            questionData: qData
+          });
+          
+          totalUpdated++;
+          console.log(`   ✅ Aktualisiert: "${correctedText}"`);
+        } else {
+          console.log(`   ✓ Übung "${exercise.title}" bereits korrekt`);
+        }
+      }
+    }
+    console.log('');
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${lessons.length} Lektionen verarbeitet`);
+  console.log(`   ${totalUpdated} Übungen aktualisiert`);
+}
+
+fixBegruessungenGapFill()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/update-family-conversations-exercises.js

@@ -0,0 +1,552 @@
+#!/usr/bin/env node
+/**
+ * Script zum Erstellen von Übungen für die "Familien-Gespräche" Lektion
+ * 
+ * Verwendung:
+ * node backend/scripts/update-family-conversations-exercises.js
+ * 
+ * Erstellt Gesprächsübungen für die "Familien-Gespräche" Lektion in allen Bisaya-Kursen.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import VocabCourse from '../models/community/vocab_course.js';
+import User from '../models/community/user.js';
+import crypto from 'crypto';
+import bcrypt from 'bcryptjs';
+import { Op } from 'sequelize';
+
+// Familiengespräche auf Bisaya mit verschiedenen Muttersprachen
+const FAMILY_CONVERSATIONS = {
+  // Deutsch -> Bisaya
+  'Deutsch': {
+    conversations: [
+      {
+        bisaya: 'Kumusta ka, Nanay?',
+        native: 'Wie geht es dir, Mama?',
+        explanation: '"Kumusta ka" ist "Wie geht es dir?" und "Nanay" ist "Mama"'
+      },
+      {
+        bisaya: 'Maayo ko, Salamat. Ikaw?',
+        native: 'Mir geht es gut, danke. Und dir?',
+        explanation: '"Maayo ko" bedeutet "Mir geht es gut", "Ikaw" ist "du" (formal)'
+      },
+      {
+        bisaya: 'Asa si Tatay?',
+        native: 'Wo ist Papa?',
+        explanation: '"Asa" bedeutet "wo", "si" ist ein Marker für Personen, "Tatay" ist "Papa"'
+      },
+      {
+        bisaya: 'Naa siya sa balay.',
+        native: 'Er ist zu Hause.',
+        explanation: '"Naa" bedeutet "ist/sein", "siya" ist "er/sie", "sa balay" ist "zu Hause"'
+      },
+      {
+        bisaya: 'Kumusta na ang Kuya?',
+        native: 'Wie geht es dem älteren Bruder?',
+        explanation: '"Kumusta na" ist "Wie geht es", "ang" ist ein Artikel, "Kuya" ist "älterer Bruder"'
+      },
+      {
+        bisaya: 'Maayo ra siya.',
+        native: 'Es geht ihm gut.',
+        explanation: '"Maayo ra" bedeutet "gut/gut geht es", "siya" ist "ihm"'
+      },
+      {
+        bisaya: 'Gutom na ko, Nanay.',
+        native: 'Ich bin hungrig, Mama.',
+        explanation: '"Gutom" bedeutet "hungrig", "na" zeigt einen Zustand, "ko" ist "ich"'
+      },
+      {
+        bisaya: 'Hulata lang, hapit na ang pagkaon.',
+        native: 'Warte nur, das Essen ist fast fertig.',
+        explanation: '"Hulata" ist "warte", "lang" ist "nur", "hapit na" ist "fast", "pagkaon" ist "Essen"'
+      }
+    ]
+  },
+  // Englisch -> Bisaya
+  'Englisch': {
+    conversations: [
+      {
+        bisaya: 'Kumusta ka, Nanay?',
+        native: 'How are you, Mom?',
+        explanation: '"Kumusta ka" means "How are you?" and "Nanay" means "Mom"'
+      },
+      {
+        bisaya: 'Maayo ko, Salamat. Ikaw?',
+        native: 'I\'m fine, thank you. And you?',
+        explanation: '"Maayo ko" means "I\'m fine", "Ikaw" is "you" (formal)'
+      },
+      {
+        bisaya: 'Asa si Tatay?',
+        native: 'Where is Dad?',
+        explanation: '"Asa" means "where", "si" is a person marker, "Tatay" means "Dad"'
+      },
+      {
+        bisaya: 'Naa siya sa balay.',
+        native: 'He is at home.',
+        explanation: '"Naa" means "is/be", "siya" is "he/she", "sa balay" means "at home"'
+      },
+      {
+        bisaya: 'Kumusta na ang Kuya?',
+        native: 'How is the older brother?',
+        explanation: '"Kumusta na" means "How is", "ang" is an article, "Kuya" means "older brother"'
+      },
+      {
+        bisaya: 'Maayo ra siya.',
+        native: 'He is fine.',
+        explanation: '"Maayo ra" means "fine/well", "siya" means "he"'
+      },
+      {
+        bisaya: 'Gutom na ko, Nanay.',
+        native: 'I\'m hungry, Mom.',
+        explanation: '"Gutom" means "hungry", "na" shows a state, "ko" is "I"'
+      },
+      {
+        bisaya: 'Hulata lang, hapit na ang pagkaon.',
+        native: 'Just wait, the food is almost ready.',
+        explanation: '"Hulata" means "wait", "lang" means "just", "hapit na" means "almost", "pagkaon" means "food"'
+      }
+    ]
+  },
+  // Spanisch -> Bisaya
+  'Spanisch': {
+    conversations: [
+      {
+        bisaya: 'Kumusta ka, Nanay?',
+        native: '¿Cómo estás, Mamá?',
+        explanation: '"Kumusta ka" significa "¿Cómo estás?" y "Nanay" significa "Mamá"'
+      },
+      {
+        bisaya: 'Maayo ko, Salamat. Ikaw?',
+        native: 'Estoy bien, gracias. ¿Y tú?',
+        explanation: '"Maayo ko" significa "Estoy bien", "Ikaw" es "tú" (formal)'
+      },
+      {
+        bisaya: 'Asa si Tatay?',
+        native: '¿Dónde está Papá?',
+        explanation: '"Asa" significa "dónde", "si" es un marcador de persona, "Tatay" significa "Papá"'
+      },
+      {
+        bisaya: 'Naa siya sa balay.',
+        native: 'Él está en casa.',
+        explanation: '"Naa" significa "está/ser", "siya" es "él/ella", "sa balay" significa "en casa"'
+      },
+      {
+        bisaya: 'Kumusta na ang Kuya?',
+        native: '¿Cómo está el hermano mayor?',
+        explanation: '"Kumusta na" significa "¿Cómo está?", "ang" es un artículo, "Kuya" significa "hermano mayor"'
+      },
+      {
+        bisaya: 'Maayo ra siya.',
+        native: 'Él está bien.',
+        explanation: '"Maayo ra" significa "bien", "siya" significa "él"'
+      },
+      {
+        bisaya: 'Gutom na ko, Nanay.',
+        native: 'Tengo hambre, Mamá.',
+        explanation: '"Gutom" significa "hambriento", "na" muestra un estado, "ko" es "yo"'
+      },
+      {
+        bisaya: 'Hulata lang, hapit na ang pagkaon.',
+        native: 'Solo espera, la comida está casi lista.',
+        explanation: '"Hulata" significa "espera", "lang" significa "solo", "hapit na" significa "casi", "pagkaon" significa "comida"'
+      }
+    ]
+  },
+  // Französisch -> Bisaya
+  'Französisch': {
+    conversations: [
+      {
+        bisaya: 'Kumusta ka, Nanay?',
+        native: 'Comment vas-tu, Maman?',
+        explanation: '"Kumusta ka" signifie "Comment vas-tu?" et "Nanay" signifie "Maman"'
+      },
+      {
+        bisaya: 'Maayo ko, Salamat. Ikaw?',
+        native: 'Je vais bien, merci. Et toi?',
+        explanation: '"Maayo ko" signifie "Je vais bien", "Ikaw" est "tu" (formel)'
+      },
+      {
+        bisaya: 'Asa si Tatay?',
+        native: 'Où est Papa?',
+        explanation: '"Asa" signifie "où", "si" est un marqueur de personne, "Tatay" signifie "Papa"'
+      },
+      {
+        bisaya: 'Naa siya sa balay.',
+        native: 'Il est à la maison.',
+        explanation: '"Naa" signifie "est/être", "siya" est "il/elle", "sa balay" signifie "à la maison"'
+      },
+      {
+        bisaya: 'Kumusta na ang Kuya?',
+        native: 'Comment va le grand frère?',
+        explanation: '"Kumusta na" signifie "Comment va", "ang" est un article, "Kuya" signifie "grand frère"'
+      },
+      {
+        bisaya: 'Maayo ra siya.',
+        native: 'Il va bien.',
+        explanation: '"Maayo ra" signifie "bien", "siya" signifie "il"'
+      },
+      {
+        bisaya: 'Gutom na ko, Nanay.',
+        native: 'J\'ai faim, Maman.',
+        explanation: '"Gutom" signifie "faim", "na" montre un état, "ko" est "je"'
+      },
+      {
+        bisaya: 'Hulata lang, hapit na ang pagkaon.',
+        native: 'Attends juste, la nourriture est presque prête.',
+        explanation: '"Hulata" signifie "attends", "lang" signifie "juste", "hapit na" signifie "presque", "pagkaon" signifie "nourriture"'
+      }
+    ]
+  },
+  // Italienisch -> Bisaya
+  'Italienisch': {
+    conversations: [
+      {
+        bisaya: 'Kumusta ka, Nanay?',
+        native: 'Come stai, Mamma?',
+        explanation: '"Kumusta ka" significa "Come stai?" e "Nanay" significa "Mamma"'
+      },
+      {
+        bisaya: 'Maayo ko, Salamat. Ikaw?',
+        native: 'Sto bene, grazie. E tu?',
+        explanation: '"Maayo ko" significa "Sto bene", "Ikaw" è "tu" (formale)'
+      },
+      {
+        bisaya: 'Asa si Tatay?',
+        native: 'Dove è Papà?',
+        explanation: '"Asa" significa "dove", "si" è un marcatore di persona, "Tatay" significa "Papà"'
+      },
+      {
+        bisaya: 'Naa siya sa balay.',
+        native: 'È a casa.',
+        explanation: '"Naa" significa "è/essere", "siya" è "lui/lei", "sa balay" significa "a casa"'
+      },
+      {
+        bisaya: 'Kumusta na ang Kuya?',
+        native: 'Come sta il fratello maggiore?',
+        explanation: '"Kumusta na" significa "Come sta", "ang" è un articolo, "Kuya" significa "fratello maggiore"'
+      },
+      {
+        bisaya: 'Maayo ra siya.',
+        native: 'Sta bene.',
+        explanation: '"Maayo ra" significa "bene", "siya" significa "lui"'
+      },
+      {
+        bisaya: 'Gutom na ko, Nanay.',
+        native: 'Ho fame, Mamma.',
+        explanation: '"Gutom" significa "fame", "na" mostra uno stato, "ko" è "io"'
+      },
+      {
+        bisaya: 'Hulata lang, hapit na ang pagkaon.',
+        native: 'Aspetta solo, il cibo è quasi pronto.',
+        explanation: '"Hulata" significa "aspetta", "lang" significa "solo", "hapit na" significa "quasi", "pagkaon" significa "cibo"'
+      }
+    ]
+  },
+  // Portugiesisch -> Bisaya
+  'Portugiesisch': {
+    conversations: [
+      {
+        bisaya: 'Kumusta ka, Nanay?',
+        native: 'Como você está, Mãe?',
+        explanation: '"Kumusta ka" significa "Como você está?" e "Nanay" significa "Mãe"'
+      },
+      {
+        bisaya: 'Maayo ko, Salamat. Ikaw?',
+        native: 'Estou bem, obrigado. E você?',
+        explanation: '"Maayo ko" significa "Estou bem", "Ikaw" é "você" (formal)'
+      },
+      {
+        bisaya: 'Asa si Tatay?',
+        native: 'Onde está o Papai?',
+        explanation: '"Asa" significa "onde", "si" é um marcador de pessoa, "Tatay" significa "Papai"'
+      },
+      {
+        bisaya: 'Naa siya sa balay.',
+        native: 'Ele está em casa.',
+        explanation: '"Naa" significa "está/ser", "siya" é "ele/ela", "sa balay" significa "em casa"'
+      },
+      {
+        bisaya: 'Kumusta na ang Kuya?',
+        native: 'Como está o irmão mais velho?',
+        explanation: '"Kumusta na" significa "Como está", "ang" é um artigo, "Kuya" significa "irmão mais velho"'
+      },
+      {
+        bisaya: 'Maayo ra siya.',
+        native: 'Ele está bem.',
+        explanation: '"Maayo ra" significa "bem", "siya" significa "ele"'
+      },
+      {
+        bisaya: 'Gutom na ko, Nanay.',
+        native: 'Estou com fome, Mãe.',
+        explanation: '"Gutom" significa "fome", "na" mostra um estado, "ko" é "eu"'
+      },
+      {
+        bisaya: 'Hulata lang, hapit na ang pagkaon.',
+        native: 'Apenas espere, a comida está quase pronta.',
+        explanation: '"Hulata" significa "espere", "lang" significa "apenas", "hapit na" significa "quase", "pagkaon" significa "comida"'
+      }
+    ]
+  }
+};
+
+async function findOrCreateSystemUser() {
+  // Versuche zuerst einen System-Benutzer zu finden (z.B. mit username "system" oder "admin")
+  let systemUser = await User.findOne({
+    where: {
+      username: { [sequelize.Sequelize.Op.in]: ['system', 'admin', 'System', 'Admin'] }
+    }
+  });
+
+  if (!systemUser) {
+    // Erstelle einen System-Benutzer
+    const password = crypto.randomBytes(32).toString('hex');
+    const hashedPassword = await bcrypt.hash(password, 10);
+    const hashedId = crypto.createHash('sha256').update(`system-${Date.now()}`).digest('hex');
+    
+    systemUser = await User.create({
+      username: 'system',
+      password: hashedPassword,
+      hashedId: hashedId,
+      email: 'system@your-part.de'
+    });
+    console.log('✅ System-Benutzer erstellt:', systemUser.hashedId);
+  } else {
+    console.log('✅ System-Benutzer gefunden:', systemUser.hashedId);
+  }
+
+  return systemUser;
+}
+
+function createFamilyConversationExercises(nativeLanguageName) {
+  const exercises = [];
+  const conversations = FAMILY_CONVERSATIONS[nativeLanguageName]?.conversations || [];
+  
+  if (conversations.length === 0) {
+    console.warn(`⚠️ Keine Gespräche für Muttersprache "${nativeLanguageName}" gefunden. Verwende Deutsch als Fallback.`);
+    return createFamilyConversationExercises('Deutsch');
+  }
+
+  let exerciseNum = 1;
+
+  // Multiple Choice: Übersetze Bisaya-Satz in Muttersprache (alle Gespräche)
+  conversations.forEach((conv, idx) => {
+    // Erstelle für jedes Gespräch eine Multiple Choice Übung
+    const wrongOptions = conversations
+      .filter((c, i) => i !== idx)
+      .sort(() => Math.random() - 0.5)
+      .slice(0, 3)
+      .map(c => c.native);
+    
+    const options = [conv.native, ...wrongOptions].sort(() => Math.random() - 0.5);
+    const correctIndex = options.indexOf(conv.native);
+    
+    exercises.push({
+      exerciseTypeId: 2, // multiple_choice
+      exerciseNumber: exerciseNum++,
+      title: `Familien-Gespräch ${idx + 1} - Übersetzung`,
+      instruction: 'Übersetze den Bisaya-Satz ins ' + nativeLanguageName,
+      questionData: JSON.stringify({
+        type: 'multiple_choice',
+        question: `Wie sagt man "${conv.bisaya}" auf ${nativeLanguageName}?`,
+        options: options
+      }),
+      answerData: JSON.stringify({
+        type: 'multiple_choice',
+        correctAnswer: correctIndex
+      }),
+      explanation: conv.explanation
+    });
+  });
+
+  // Multiple Choice: Rückwärts-Übersetzung (Was bedeutet dieser Satz?)
+  conversations.forEach((conv, idx) => {
+    if (idx < 6) { // Erste 6 als Rückwärts-Übersetzung
+      const wrongOptions = conversations
+        .filter((c, i) => i !== idx)
+        .sort(() => Math.random() - 0.5)
+        .slice(0, 3)
+        .map(c => c.native);
+      
+      const options = [conv.native, ...wrongOptions].sort(() => Math.random() - 0.5);
+      const correctIndex = options.indexOf(conv.native);
+      
+      exercises.push({
+        exerciseTypeId: 2, // multiple_choice
+        exerciseNumber: exerciseNum++,
+        title: `Familien-Gespräch ${idx + 1} - Was bedeutet dieser Satz?`,
+        instruction: 'Was bedeutet dieser Bisaya-Satz?',
+        questionData: JSON.stringify({
+          type: 'multiple_choice',
+          question: `Was bedeutet "${conv.bisaya}"?`,
+          options: options
+        }),
+        answerData: JSON.stringify({
+          type: 'multiple_choice',
+          correctAnswer: correctIndex
+        }),
+        explanation: conv.explanation
+      });
+    }
+  });
+
+  // Gap Fill: Vervollständige Familiengespräche (mehrere Varianten)
+  exercises.push({
+    exerciseTypeId: 1, // gap_fill
+    exerciseNumber: exerciseNum++,
+    title: 'Familien-Gespräch 1 - Vervollständigen',
+    instruction: 'Vervollständige das Gespräch mit den richtigen Bisaya-Wörtern.',
+    questionData: JSON.stringify({
+      type: 'gap_fill',
+      text: 'Person A: Kumusta ka, {gap}? (Mama)\nPerson B: {gap} ko, Salamat. Ikaw? (Mir geht es gut)',
+      gaps: 2
+    }),
+    answerData: JSON.stringify({
+      type: 'gap_fill',
+      answers: ['Nanay', 'Maayo']
+    }),
+    explanation: '"Nanay" ist "Mama" und "Maayo ko" bedeutet "Mir geht es gut"'
+  });
+
+  exercises.push({
+    exerciseTypeId: 1, // gap_fill
+    exerciseNumber: exerciseNum++,
+    title: 'Familien-Gespräch 2 - Vervollständigen',
+    instruction: 'Vervollständige das Gespräch mit den richtigen Bisaya-Wörtern.',
+    questionData: JSON.stringify({
+      type: 'gap_fill',
+      text: 'Person A: {gap} si Tatay? (Wo ist)\nPerson B: {gap} siya sa balay. (Er ist)',
+      gaps: 2
+    }),
+    answerData: JSON.stringify({
+      type: 'gap_fill',
+      answers: ['Asa', 'Naa']
+    }),
+    explanation: '"Asa" bedeutet "wo" und "Naa" bedeutet "ist/sein"'
+  });
+
+  // Transformation: Übersetze Muttersprache-Satz nach Bisaya (mehrere Varianten)
+  conversations.slice(0, 4).forEach((conv, idx) => {
+    exercises.push({
+      exerciseTypeId: 3, // transformation
+      exerciseNumber: exerciseNum++,
+      title: `Familien-Gespräch ${idx + 1} - Übersetzung nach Bisaya`,
+      instruction: 'Übersetze den Satz ins Bisaya.',
+      questionData: JSON.stringify({
+        type: 'transformation',
+        text: conv.native
+      }),
+      answerData: JSON.stringify({
+        type: 'transformation',
+        correctAnswer: conv.bisaya
+      }),
+      explanation: `"${conv.bisaya}" bedeutet "${conv.native}" auf Bisaya. ${conv.explanation}`
+    });
+  });
+
+  return exercises;
+}
+
+async function updateFamilyConversationExercises() {
+  await sequelize.authenticate();
+  console.log('✅ Datenbankverbindung erfolgreich hergestellt.\n');
+
+  const systemUser = await findOrCreateSystemUser();
+  
+  // Finde Bisaya-Sprache mit SQL
+  const [bisayaLangResult] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    { type: sequelize.QueryTypes.SELECT }
+  );
+
+  if (!bisayaLangResult) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const bisayaLanguageId = bisayaLangResult.id;
+
+  // Hole alle Bisaya-Kurse mit native language info
+  const courses = await sequelize.query(
+    `SELECT 
+      c.id,
+      c.title,
+      c.native_language_id,
+      nl.name as native_language_name
+    FROM community.vocab_course c
+    LEFT JOIN community.vocab_language nl ON c.native_language_id = nl.id
+    WHERE c.language_id = :bisayaLanguageId`,
+    {
+      replacements: { bisayaLanguageId },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`📚 Gefunden: ${courses.length} Bisaya-Kurse\n`);
+
+  let totalExercisesCreated = 0;
+  let totalLessonsProcessed = 0;
+
+  for (const course of courses) {
+    console.log(`📖 Kurs: ${course.title} (ID: ${course.id})`);
+    
+    // Finde native language name
+    const nativeLanguageName = course.native_language_name || 'Deutsch';
+    console.log(`   Muttersprache: ${nativeLanguageName}`);
+
+    // Finde "Familien-Gespräche" Lektion
+    const lessons = await VocabCourseLesson.findAll({
+      where: {
+        courseId: course.id,
+        title: 'Familien-Gespräche'
+      },
+      attributes: ['id', 'title', 'lessonNumber']
+    });
+
+    console.log(`   ${lessons.length} "Familien-Gespräche"-Lektion(en) gefunden`);
+
+    for (const lesson of lessons) {
+      // Lösche vorhandene Übungen
+      const deletedCount = await VocabGrammarExercise.destroy({
+        where: { lessonId: lesson.id }
+      });
+      console.log(`   🗑️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${deletedCount} alte Übung(en) gelöscht`);
+
+      // Erstelle neue Übungen
+      const exercises = createFamilyConversationExercises(nativeLanguageName);
+      
+      if (exercises.length > 0) {
+        const exercisesToCreate = exercises.map(ex => ({
+          ...ex,
+          lessonId: lesson.id,
+          createdByUserId: systemUser.id
+        }));
+
+        await VocabGrammarExercise.bulkCreate(exercisesToCreate);
+        totalExercisesCreated += exercisesToCreate.length;
+        console.log(`   ✅ ${exercisesToCreate.length} neue Übung(en) erstellt`);
+      } else {
+        console.log(`   ⚠️ Keine Übungen erstellt`);
+      }
+      
+      totalLessonsProcessed++;
+    }
+    console.log('');
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${totalLessonsProcessed} "Familien-Gespräche"-Lektion(en) verarbeitet`);
+  console.log(`   ${totalExercisesCreated} Grammatik-Übungen erstellt`);
+}
+
+updateFamilyConversationExercises()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/update-family-words-exercises.js

@@ -0,0 +1,293 @@
+#!/usr/bin/env node
+/**
+ * Script zum Aktualisieren der "Familienwörter"-Übungen in Bisaya-Kursen
+ * 
+ * Verwendung:
+ * node backend/scripts/update-family-words-exercises.js
+ * 
+ * Ersetzt bestehende Dummy-Übungen durch spezifische Familienwörter-Übungen.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import VocabCourse from '../models/community/vocab_course.js';
+import User from '../models/community/user.js';
+
+// Familienwörter-Übersetzungen in verschiedene Muttersprachen
+const FAMILY_WORDS = {
+  Mutter: {
+    de: 'Mutter',
+    en: 'Mother',
+    es: 'Madre',
+    fr: 'Mère',
+    it: 'Madre',
+    pt: 'Mãe'
+  },
+  Vater: {
+    de: 'Vater',
+    en: 'Father',
+    es: 'Padre',
+    fr: 'Père',
+    it: 'Padre',
+    pt: 'Pai'
+  },
+  'älterer Bruder': {
+    de: 'älterer Bruder',
+    en: 'older brother',
+    es: 'hermano mayor',
+    fr: 'frère aîné',
+    it: 'fratello maggiore',
+    pt: 'irmão mais velho'
+  },
+  'ältere Schwester': {
+    de: 'ältere Schwester',
+    en: 'older sister',
+    es: 'hermana mayor',
+    fr: 'sœur aînée',
+    it: 'sorella maggiore',
+    pt: 'irmã mais velha'
+  },
+  Großmutter: {
+    de: 'Großmutter',
+    en: 'Grandmother',
+    es: 'Abuela',
+    fr: 'Grand-mère',
+    it: 'Nonna',
+    pt: 'Avó'
+  },
+  Großvater: {
+    de: 'Großvater',
+    en: 'Grandfather',
+    es: 'Abuelo',
+    fr: 'Grand-père',
+    it: 'Nonno',
+    pt: 'Avô'
+  }
+};
+
+// Bisaya-Übersetzungen
+const BISAYA_TRANSLATIONS = {
+  'Mutter': 'Nanay',
+  'Vater': 'Tatay',
+  'älterer Bruder': 'Kuya',
+  'ältere Schwester': 'Ate',
+  'Großmutter': 'Lola',
+  'Großvater': 'Lolo'
+};
+
+// Sprach-Codes für Mapping
+const LANGUAGE_CODES = {
+  'Deutsch': 'de',
+  'English': 'en',
+  'Español': 'es',
+  'Français': 'fr',
+  'Italiano': 'it',
+  'Português': 'pt',
+  'Spanish': 'es',
+  'French': 'fr',
+  'Italian': 'it',
+  'Portuguese': 'pt'
+};
+
+// Erstelle Übungen basierend auf Muttersprache
+function createFamilyWordsExercises(nativeLanguageName) {
+  const langCode = LANGUAGE_CODES[nativeLanguageName] || 'de'; // Fallback zu Deutsch
+  
+  const exercises = [];
+  
+  // Multiple Choice Übungen für jedes Familienwort
+  const familyWords = Object.keys(FAMILY_WORDS);
+  const bisayaWords = ['Nanay', 'Tatay', 'Kuya', 'Ate', 'Lola', 'Lolo'];
+  
+  familyWords.forEach((key, index) => {
+    const nativeWord = FAMILY_WORDS[key][langCode];
+    const bisayaWord = BISAYA_TRANSLATIONS[key];
+    
+    // Erstelle Multiple Choice mit falschen Antworten
+    const wrongAnswers = bisayaWords.filter(w => w !== bisayaWord);
+    const shuffledWrong = wrongAnswers.sort(() => Math.random() - 0.5).slice(0, 3);
+    const options = [bisayaWord, ...shuffledWrong].sort(() => Math.random() - 0.5);
+    const correctIndex = options.indexOf(bisayaWord);
+    
+    exercises.push({
+      exerciseTypeId: 2, // multiple_choice
+      title: `Wie sagt man "${nativeWord}" auf Bisaya?`,
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: `Wie sagt man "${nativeWord}" auf Bisaya?`,
+        options: options
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: correctIndex
+      },
+      explanation: `"${bisayaWord}" bedeutet "${nativeWord}" auf Bisaya.`
+    });
+  });
+  
+  // Gap Fill Übung
+  const nativeWords = familyWords.map(key => FAMILY_WORDS[key][langCode]);
+  exercises.push({
+    exerciseTypeId: 1, // gap_fill
+    title: 'Familienwörter vervollständigen',
+    instruction: `Fülle die Lücken mit den richtigen Bisaya-Familienwörtern.`,
+    questionData: {
+      type: 'gap_fill',
+      text: familyWords.map((key, i) => `{gap} (${nativeWords[i]})`).join(' | '),
+      gaps: familyWords.length
+    },
+    answerData: {
+      type: 'gap_fill',
+      answers: bisayaWords
+    },
+    explanation: bisayaWords.map((bw, i) => `${bw} = ${nativeWords[i]}`).join(', ') + '.'
+  });
+  
+  // Transformation Übung
+  exercises.push({
+    exerciseTypeId: 4, // transformation
+    title: 'Familienwörter übersetzen',
+    instruction: `Übersetze das Familienwort ins Bisaya.`,
+    questionData: {
+      type: 'transformation',
+      text: nativeWords[0], // Erste Muttersprache als Beispiel
+      sourceLanguage: nativeLanguageName || 'Deutsch',
+      targetLanguage: 'Bisaya'
+    },
+    answerData: {
+      type: 'transformation',
+      correct: bisayaWords[0],
+      alternatives: [bisayaWords[0]] // Nur die korrekte Antwort
+    },
+    explanation: `"${bisayaWords[0]}" bedeutet "${nativeWords[0]}" auf Bisaya.`
+  });
+  
+  return exercises;
+}
+
+async function findOrCreateSystemUser() {
+  let systemUser = await User.findOne({ 
+    where: { 
+      username: 'system' 
+    } 
+  });
+
+  if (!systemUser) {
+    systemUser = await User.findOne({ 
+      where: { 
+        username: 'admin' 
+      } 
+    });
+  }
+
+  if (!systemUser) {
+    console.error('❌ System-Benutzer nicht gefunden.');
+    throw new Error('System user not found');
+  }
+
+  return systemUser;
+}
+
+async function updateFamilyWordsExercises() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  const systemUser = await findOrCreateSystemUser();
+  console.log(`Verwende System-Benutzer: ${systemUser.username} (ID: ${systemUser.id})\n`);
+
+  // Finde alle Bisaya-Kurse
+  const [bisayaLanguage] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    {
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  if (!bisayaLanguage) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const courses = await sequelize.query(
+    `SELECT c.id, c.title, c.owner_user_id, c.native_language_id, nl.name as native_language_name
+     FROM community.vocab_course c
+     LEFT JOIN community.vocab_language nl ON c.native_language_id = nl.id
+     WHERE c.language_id = :languageId`,
+    {
+      replacements: { languageId: bisayaLanguage.id },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`Gefunden: ${courses.length} Bisaya-Kurse\n`);
+
+  let totalExercisesUpdated = 0;
+  let totalLessonsUpdated = 0;
+
+  for (const course of courses) {
+    const nativeLangName = course.native_language_name || 'Deutsch'; // Fallback zu Deutsch
+    console.log(`📚 Kurs: ${course.title} (ID: ${course.id}, Muttersprache: ${nativeLangName})`);
+    
+    // Erstelle Übungen für diese Muttersprache
+    const exercises = createFamilyWordsExercises(nativeLangName);
+    
+    // Finde "Familienwörter"-Lektionen
+    const lessons = await VocabCourseLesson.findAll({
+      where: { 
+        courseId: course.id,
+        title: 'Familienwörter'
+      },
+      order: [['lessonNumber', 'ASC']]
+    });
+
+    console.log(`   ${lessons.length} "Familienwörter"-Lektionen gefunden\n`);
+
+    for (const lesson of lessons) {
+      // Lösche bestehende Übungen (inkl. Dummy-Übungen)
+      const deletedCount = await VocabGrammarExercise.destroy({
+        where: { lessonId: lesson.id }
+      });
+
+      console.log(`   🗑️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${deletedCount} alte Übung(en) gelöscht`);
+
+      // Erstelle neue Übungen
+      let exerciseNumber = 1;
+      for (const exerciseData of exercises) {
+        await VocabGrammarExercise.create({
+          lessonId: lesson.id,
+          exerciseTypeId: exerciseData.exerciseTypeId,
+          exerciseNumber: exerciseNumber++,
+          title: exerciseData.title,
+          instruction: exerciseData.instruction,
+          questionData: JSON.stringify(exerciseData.questionData),
+          answerData: JSON.stringify(exerciseData.answerData),
+          explanation: exerciseData.explanation,
+          createdByUserId: course.owner_user_id || systemUser.id
+        });
+        totalExercisesUpdated++;
+      }
+
+      console.log(`   ✅ Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${exercises.length} neue Übung(en) erstellt (${nativeLangName} → Bisaya)`);
+      totalLessonsUpdated++;
+    }
+    
+    console.log('');
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${totalLessonsUpdated} Lektionen aktualisiert`);
+  console.log(`   ${totalExercisesUpdated} neue Grammatik-Übungen erstellt`);
+}
+
+updateFamilyWordsExercises()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/update-feelings-affection-exercises.js

@@ -0,0 +1,552 @@
+#!/usr/bin/env node
+/**
+ * Script zum Erstellen von Übungen für die "Gefühle & Zuneigung" Lektion
+ * 
+ * Verwendung:
+ * node backend/scripts/update-feelings-affection-exercises.js
+ * 
+ * Erstellt Gesprächsübungen für die "Gefühle & Zuneigung" Lektion in allen Bisaya-Kursen.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import VocabCourse from '../models/community/vocab_course.js';
+import User from '../models/community/user.js';
+import crypto from 'crypto';
+import bcrypt from 'bcryptjs';
+import { Op } from 'sequelize';
+
+// Gefühle & Zuneigung auf Bisaya mit verschiedenen Muttersprachen
+const FEELINGS_AFFECTION = {
+  // Deutsch -> Bisaya
+  'Deutsch': {
+    conversations: [
+      {
+        bisaya: 'Gihigugma ko ikaw.',
+        native: 'Ich liebe dich.',
+        explanation: '"Gihigugma" bedeutet "lieben", "ko" ist "ich", "ikaw" ist "dich"'
+      },
+      {
+        bisaya: 'Nahigugma ko nimo.',
+        native: 'Ich liebe dich. (alternativ)',
+        explanation: '"Nahigugma" ist eine andere Form von "lieben", "nimo" ist "dich" (informell)'
+      },
+      {
+        bisaya: 'Ganahan ko nimo.',
+        native: 'Ich mag dich.',
+        explanation: '"Ganahan" bedeutet "mögen/gefallen", "ko" ist "ich", "nimo" ist "dich"'
+      },
+      {
+        bisaya: 'Nalipay ko nga nakita ka.',
+        native: 'Ich bin glücklich, dich zu sehen.',
+        explanation: '"Nalipay" bedeutet "glücklich", "ko" ist "ich", "nga nakita ka" ist "dich zu sehen"'
+      },
+      {
+        bisaya: 'Gimingaw ko nimo.',
+        native: 'Ich vermisse dich.',
+        explanation: '"Gimingaw" bedeutet "vermissen", "ko" ist "ich", "nimo" ist "dich"'
+      },
+      {
+        bisaya: 'Nalipay ko.',
+        native: 'Ich bin glücklich.',
+        explanation: '"Nalipay" bedeutet "glücklich", "ko" ist "ich"'
+      },
+      {
+        bisaya: 'Nasubo ko.',
+        native: 'Ich bin traurig.',
+        explanation: '"Nasubo" bedeutet "traurig", "ko" ist "ich"'
+      },
+      {
+        bisaya: 'Nalipay ko nga naa ka dinhi.',
+        native: 'Ich bin glücklich, dass du hier bist.',
+        explanation: '"Nalipay" ist "glücklich", "nga naa ka dinhi" bedeutet "dass du hier bist"'
+      }
+    ]
+  },
+  // Englisch -> Bisaya
+  'Englisch': {
+    conversations: [
+      {
+        bisaya: 'Gihigugma ko ikaw.',
+        native: 'I love you.',
+        explanation: '"Gihigugma" means "love", "ko" is "I", "ikaw" is "you"'
+      },
+      {
+        bisaya: 'Nahigugma ko nimo.',
+        native: 'I love you. (alternative)',
+        explanation: '"Nahigugma" is another form of "love", "nimo" is "you" (informal)'
+      },
+      {
+        bisaya: 'Ganahan ko nimo.',
+        native: 'I like you.',
+        explanation: '"Ganahan" means "like", "ko" is "I", "nimo" is "you"'
+      },
+      {
+        bisaya: 'Nalipay ko nga nakita ka.',
+        native: 'I am happy to see you.',
+        explanation: '"Nalipay" means "happy", "ko" is "I", "nga nakita ka" is "to see you"'
+      },
+      {
+        bisaya: 'Gimingaw ko nimo.',
+        native: 'I miss you.',
+        explanation: '"Gimingaw" means "miss", "ko" is "I", "nimo" is "you"'
+      },
+      {
+        bisaya: 'Nalipay ko.',
+        native: 'I am happy.',
+        explanation: '"Nalipay" means "happy", "ko" is "I"'
+      },
+      {
+        bisaya: 'Nasubo ko.',
+        native: 'I am sad.',
+        explanation: '"Nasubo" means "sad", "ko" is "I"'
+      },
+      {
+        bisaya: 'Nalipay ko nga naa ka dinhi.',
+        native: 'I am happy that you are here.',
+        explanation: '"Nalipay" is "happy", "nga naa ka dinhi" means "that you are here"'
+      }
+    ]
+  },
+  // Spanisch -> Bisaya
+  'Spanisch': {
+    conversations: [
+      {
+        bisaya: 'Gihigugma ko ikaw.',
+        native: 'Te amo.',
+        explanation: '"Gihigugma" significa "amar", "ko" es "yo", "ikaw" es "tú"'
+      },
+      {
+        bisaya: 'Nahigugma ko nimo.',
+        native: 'Te amo. (alternativa)',
+        explanation: '"Nahigugma" es otra forma de "amar", "nimo" es "tú" (informal)'
+      },
+      {
+        bisaya: 'Ganahan ko nimo.',
+        native: 'Me gustas.',
+        explanation: '"Ganahan" significa "gustar", "ko" es "yo", "nimo" es "tú"'
+      },
+      {
+        bisaya: 'Nalipay ko nga nakita ka.',
+        native: 'Estoy feliz de verte.',
+        explanation: '"Nalipay" significa "feliz", "ko" es "yo", "nga nakita ka" es "verte"'
+      },
+      {
+        bisaya: 'Gimingaw ko nimo.',
+        native: 'Te extraño.',
+        explanation: '"Gimingaw" significa "extrañar", "ko" es "yo", "nimo" es "tú"'
+      },
+      {
+        bisaya: 'Nalipay ko.',
+        native: 'Estoy feliz.',
+        explanation: '"Nalipay" significa "feliz", "ko" es "yo"'
+      },
+      {
+        bisaya: 'Nasubo ko.',
+        native: 'Estoy triste.',
+        explanation: '"Nasubo" significa "triste", "ko" es "yo"'
+      },
+      {
+        bisaya: 'Nalipay ko nga naa ka dinhi.',
+        native: 'Estoy feliz de que estés aquí.',
+        explanation: '"Nalipay" es "feliz", "nga naa ka dinhi" significa "que estés aquí"'
+      }
+    ]
+  },
+  // Französisch -> Bisaya
+  'Französisch': {
+    conversations: [
+      {
+        bisaya: 'Gihigugma ko ikaw.',
+        native: 'Je t\'aime.',
+        explanation: '"Gihigugma" signifie "aimer", "ko" est "je", "ikaw" est "tu"'
+      },
+      {
+        bisaya: 'Nahigugma ko nimo.',
+        native: 'Je t\'aime. (alternative)',
+        explanation: '"Nahigugma" est une autre forme de "aimer", "nimo" est "tu" (informel)'
+      },
+      {
+        bisaya: 'Ganahan ko nimo.',
+        native: 'Je t\'aime bien.',
+        explanation: '"Ganahan" signifie "aimer bien", "ko" est "je", "nimo" est "tu"'
+      },
+      {
+        bisaya: 'Nalipay ko nga nakita ka.',
+        native: 'Je suis heureux de te voir.',
+        explanation: '"Nalipay" signifie "heureux", "ko" est "je", "nga nakita ka" est "te voir"'
+      },
+      {
+        bisaya: 'Gimingaw ko nimo.',
+        native: 'Tu me manques.',
+        explanation: '"Gimingaw" signifie "manquer", "ko" est "je", "nimo" est "tu"'
+      },
+      {
+        bisaya: 'Nalipay ko.',
+        native: 'Je suis heureux.',
+        explanation: '"Nalipay" signifie "heureux", "ko" est "je"'
+      },
+      {
+        bisaya: 'Nasubo ko.',
+        native: 'Je suis triste.',
+        explanation: '"Nasubo" signifie "triste", "ko" est "je"'
+      },
+      {
+        bisaya: 'Nalipay ko nga naa ka dinhi.',
+        native: 'Je suis heureux que tu sois ici.',
+        explanation: '"Nalipay" est "heureux", "nga naa ka dinhi" signifie "que tu sois ici"'
+      }
+    ]
+  },
+  // Italienisch -> Bisaya
+  'Italienisch': {
+    conversations: [
+      {
+        bisaya: 'Gihigugma ko ikaw.',
+        native: 'Ti amo.',
+        explanation: '"Gihigugma" significa "amare", "ko" è "io", "ikaw" è "tu"'
+      },
+      {
+        bisaya: 'Nahigugma ko nimo.',
+        native: 'Ti amo. (alternativa)',
+        explanation: '"Nahigugma" è un\'altra forma di "amare", "nimo" è "tu" (informale)'
+      },
+      {
+        bisaya: 'Ganahan ko nimo.',
+        native: 'Mi piaci.',
+        explanation: '"Ganahan" significa "piacere", "ko" è "io", "nimo" è "tu"'
+      },
+      {
+        bisaya: 'Nalipay ko nga nakita ka.',
+        native: 'Sono felice di vederti.',
+        explanation: '"Nalipay" significa "felice", "ko" è "io", "nga nakita ka" è "vederti"'
+      },
+      {
+        bisaya: 'Gimingaw ko nimo.',
+        native: 'Mi manchi.',
+        explanation: '"Gimingaw" significa "mancare", "ko" è "io", "nimo" è "tu"'
+      },
+      {
+        bisaya: 'Nalipay ko.',
+        native: 'Sono felice.',
+        explanation: '"Nalipay" significa "felice", "ko" è "io"'
+      },
+      {
+        bisaya: 'Nasubo ko.',
+        native: 'Sono triste.',
+        explanation: '"Nasubo" significa "triste", "ko" è "io"'
+      },
+      {
+        bisaya: 'Nalipay ko nga naa ka dinhi.',
+        native: 'Sono felice che tu sia qui.',
+        explanation: '"Nalipay" è "felice", "nga naa ka dinhi" significa "che tu sia qui"'
+      }
+    ]
+  },
+  // Portugiesisch -> Bisaya
+  'Portugiesisch': {
+    conversations: [
+      {
+        bisaya: 'Gihigugma ko ikaw.',
+        native: 'Eu te amo.',
+        explanation: '"Gihigugma" significa "amar", "ko" é "eu", "ikaw" é "você"'
+      },
+      {
+        bisaya: 'Nahigugma ko nimo.',
+        native: 'Eu te amo. (alternativa)',
+        explanation: '"Nahigugma" é outra forma de "amar", "nimo" é "você" (informal)'
+      },
+      {
+        bisaya: 'Ganahan ko nimo.',
+        native: 'Eu gosto de você.',
+        explanation: '"Ganahan" significa "gostar", "ko" é "eu", "nimo" é "você"'
+      },
+      {
+        bisaya: 'Nalipay ko nga nakita ka.',
+        native: 'Estou feliz em te ver.',
+        explanation: '"Nalipay" significa "feliz", "ko" é "eu", "nga nakita ka" é "te ver"'
+      },
+      {
+        bisaya: 'Gimingaw ko nimo.',
+        native: 'Eu sinto sua falta.',
+        explanation: '"Gimingaw" significa "sentir falta", "ko" é "eu", "nimo" é "você"'
+      },
+      {
+        bisaya: 'Nalipay ko.',
+        native: 'Estou feliz.',
+        explanation: '"Nalipay" significa "feliz", "ko" é "eu"'
+      },
+      {
+        bisaya: 'Nasubo ko.',
+        native: 'Estou triste.',
+        explanation: '"Nasubo" significa "triste", "ko" é "eu"'
+      },
+      {
+        bisaya: 'Nalipay ko nga naa ka dinhi.',
+        native: 'Estou feliz que você esteja aqui.',
+        explanation: '"Nalipay" é "feliz", "nga naa ka dinhi" significa "que você esteja aqui"'
+      }
+    ]
+  }
+};
+
+async function findOrCreateSystemUser() {
+  // Versuche zuerst einen System-Benutzer zu finden (z.B. mit username "system" oder "admin")
+  let systemUser = await User.findOne({
+    where: {
+      username: { [sequelize.Sequelize.Op.in]: ['system', 'admin', 'System', 'Admin'] }
+    }
+  });
+
+  if (!systemUser) {
+    // Erstelle einen System-Benutzer
+    const password = crypto.randomBytes(32).toString('hex');
+    const hashedPassword = await bcrypt.hash(password, 10);
+    const hashedId = crypto.createHash('sha256').update(`system-${Date.now()}`).digest('hex');
+    
+    systemUser = await User.create({
+      username: 'system',
+      password: hashedPassword,
+      hashedId: hashedId,
+      email: 'system@your-part.de'
+    });
+    console.log('✅ System-Benutzer erstellt:', systemUser.hashedId);
+  } else {
+    console.log('✅ System-Benutzer gefunden:', systemUser.hashedId);
+  }
+
+  return systemUser;
+}
+
+function createFeelingsAffectionExercises(nativeLanguageName) {
+  const exercises = [];
+  const conversations = FEELINGS_AFFECTION[nativeLanguageName]?.conversations || [];
+  
+  if (conversations.length === 0) {
+    console.warn(`⚠️ Keine Gespräche für Muttersprache "${nativeLanguageName}" gefunden. Verwende Deutsch als Fallback.`);
+    return createFeelingsAffectionExercises('Deutsch');
+  }
+
+  let exerciseNum = 1;
+
+  // Multiple Choice: Übersetze Bisaya-Satz in Muttersprache (alle Gespräche)
+  conversations.forEach((conv, idx) => {
+    // Erstelle für jedes Gespräch eine Multiple Choice Übung
+    const wrongOptions = conversations
+      .filter((c, i) => i !== idx)
+      .sort(() => Math.random() - 0.5)
+      .slice(0, 3)
+      .map(c => c.native);
+    
+    const options = [conv.native, ...wrongOptions].sort(() => Math.random() - 0.5);
+    const correctIndex = options.indexOf(conv.native);
+    
+    exercises.push({
+      exerciseTypeId: 2, // multiple_choice
+      exerciseNumber: exerciseNum++,
+      title: `Gefühle & Zuneigung ${idx + 1} - Übersetzung`,
+      instruction: 'Übersetze den Bisaya-Satz ins ' + nativeLanguageName,
+      questionData: JSON.stringify({
+        type: 'multiple_choice',
+        question: `Wie sagt man "${conv.bisaya}" auf ${nativeLanguageName}?`,
+        options: options
+      }),
+      answerData: JSON.stringify({
+        type: 'multiple_choice',
+        correctAnswer: correctIndex
+      }),
+      explanation: conv.explanation
+    });
+  });
+
+  // Multiple Choice: Rückwärts-Übersetzung (Was bedeutet dieser Satz?)
+  conversations.forEach((conv, idx) => {
+    if (idx < 6) { // Erste 6 als Rückwärts-Übersetzung
+      const wrongOptions = conversations
+        .filter((c, i) => i !== idx)
+        .sort(() => Math.random() - 0.5)
+        .slice(0, 3)
+        .map(c => c.native);
+      
+      const options = [conv.native, ...wrongOptions].sort(() => Math.random() - 0.5);
+      const correctIndex = options.indexOf(conv.native);
+      
+      exercises.push({
+        exerciseTypeId: 2, // multiple_choice
+        exerciseNumber: exerciseNum++,
+        title: `Gefühle & Zuneigung ${idx + 1} - Was bedeutet dieser Satz?`,
+        instruction: 'Was bedeutet dieser Bisaya-Satz?',
+        questionData: JSON.stringify({
+          type: 'multiple_choice',
+          question: `Was bedeutet "${conv.bisaya}"?`,
+          options: options
+        }),
+        answerData: JSON.stringify({
+          type: 'multiple_choice',
+          correctAnswer: correctIndex
+        }),
+        explanation: conv.explanation
+      });
+    }
+  });
+
+  // Gap Fill: Vervollständige Gefühlsausdrücke (mehrere Varianten)
+  exercises.push({
+    exerciseTypeId: 1, // gap_fill
+    exerciseNumber: exerciseNum++,
+    title: 'Gefühle & Zuneigung 1 - Vervollständigen',
+    instruction: 'Vervollständige den Satz mit den richtigen Bisaya-Wörtern.',
+    questionData: JSON.stringify({
+      type: 'gap_fill',
+      text: 'Person A: {gap} ko ikaw. (Ich liebe dich)\nPerson B: {gap} ko pud. (Ich liebe dich auch)',
+      gaps: 2
+    }),
+    answerData: JSON.stringify({
+      type: 'gap_fill',
+      answers: ['Gihigugma', 'Gihigugma']
+    }),
+    explanation: '"Gihigugma" bedeutet "lieben" und wird wiederholt, um "auch" auszudrücken'
+  });
+
+  exercises.push({
+    exerciseTypeId: 1, // gap_fill
+    exerciseNumber: exerciseNum++,
+    title: 'Gefühle & Zuneigung 2 - Vervollständigen',
+    instruction: 'Vervollständige den Satz mit den richtigen Bisaya-Wörtern.',
+    questionData: JSON.stringify({
+      type: 'gap_fill',
+      text: 'Person A: {gap} ko nga nakita ka. (Ich bin glücklich)\nPerson B: {gap} ko pud. (Ich auch)',
+      gaps: 2
+    }),
+    answerData: JSON.stringify({
+      type: 'gap_fill',
+      answers: ['Nalipay', 'Nalipay']
+    }),
+    explanation: '"Nalipay" bedeutet "glücklich sein"'
+  });
+
+  // Transformation: Übersetze Muttersprache-Satz nach Bisaya (mehrere Varianten)
+  conversations.slice(0, 4).forEach((conv, idx) => {
+    exercises.push({
+      exerciseTypeId: 3, // transformation
+      exerciseNumber: exerciseNum++,
+      title: `Gefühle & Zuneigung ${idx + 1} - Übersetzung nach Bisaya`,
+      instruction: 'Übersetze den Satz ins Bisaya.',
+      questionData: JSON.stringify({
+        type: 'transformation',
+        text: conv.native
+      }),
+      answerData: JSON.stringify({
+        type: 'transformation',
+        correctAnswer: conv.bisaya
+      }),
+      explanation: `"${conv.bisaya}" bedeutet "${conv.native}" auf Bisaya. ${conv.explanation}`
+    });
+  });
+
+  return exercises;
+}
+
+async function updateFeelingsAffectionExercises() {
+  await sequelize.authenticate();
+  console.log('✅ Datenbankverbindung erfolgreich hergestellt.\n');
+
+  const systemUser = await findOrCreateSystemUser();
+  
+  // Finde Bisaya-Sprache mit SQL
+  const [bisayaLangResult] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    { type: sequelize.QueryTypes.SELECT }
+  );
+
+  if (!bisayaLangResult) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const bisayaLanguageId = bisayaLangResult.id;
+
+  // Hole alle Bisaya-Kurse mit native language info
+  const courses = await sequelize.query(
+    `SELECT 
+      c.id,
+      c.title,
+      c.native_language_id,
+      nl.name as native_language_name
+    FROM community.vocab_course c
+    LEFT JOIN community.vocab_language nl ON c.native_language_id = nl.id
+    WHERE c.language_id = :bisayaLanguageId`,
+    {
+      replacements: { bisayaLanguageId },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`📚 Gefunden: ${courses.length} Bisaya-Kurse\n`);
+
+  let totalExercisesCreated = 0;
+  let totalLessonsProcessed = 0;
+
+  for (const course of courses) {
+    console.log(`📖 Kurs: ${course.title} (ID: ${course.id})`);
+    
+    // Finde native language name
+    const nativeLanguageName = course.native_language_name || 'Deutsch';
+    console.log(`   Muttersprache: ${nativeLanguageName}`);
+
+    // Finde "Gefühle & Zuneigung" Lektion
+    const lessons = await VocabCourseLesson.findAll({
+      where: {
+        courseId: course.id,
+        title: 'Gefühle & Zuneigung'
+      },
+      attributes: ['id', 'title', 'lessonNumber']
+    });
+
+    console.log(`   ${lessons.length} "Gefühle & Zuneigung"-Lektion(en) gefunden`);
+
+    for (const lesson of lessons) {
+      // Lösche vorhandene Übungen
+      const deletedCount = await VocabGrammarExercise.destroy({
+        where: { lessonId: lesson.id }
+      });
+      console.log(`   🗑️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${deletedCount} alte Übung(en) gelöscht`);
+
+      // Erstelle neue Übungen
+      const exercises = createFeelingsAffectionExercises(nativeLanguageName);
+      
+      if (exercises.length > 0) {
+        const exercisesToCreate = exercises.map(ex => ({
+          ...ex,
+          lessonId: lesson.id,
+          createdByUserId: systemUser.id
+        }));
+
+        await VocabGrammarExercise.bulkCreate(exercisesToCreate);
+        totalExercisesCreated += exercisesToCreate.length;
+        console.log(`   ✅ ${exercisesToCreate.length} neue Übung(en) erstellt`);
+      } else {
+        console.log(`   ⚠️ Keine Übungen erstellt`);
+      }
+      
+      totalLessonsProcessed++;
+    }
+    console.log('');
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${totalLessonsProcessed} "Gefühle & Zuneigung"-Lektion(en) verarbeitet`);
+  console.log(`   ${totalExercisesCreated} Grammatik-Übungen erstellt`);
+}
+
+updateFeelingsAffectionExercises()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/update-food-care-exercises.js

@@ -0,0 +1,730 @@
+#!/usr/bin/env node
+/**
+ * Script zum Erstellen von Übungen für die "Essen & Fürsorge" und "Essen & Trinken" Lektionen
+ * 
+ * Verwendung:
+ * node backend/scripts/update-food-care-exercises.js
+ * 
+ * Erstellt Gesprächsübungen für die "Essen & Fürsorge" und "Essen & Trinken" Lektionen in allen Bisaya-Kursen.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import VocabCourse from '../models/community/vocab_course.js';
+import User from '../models/community/user.js';
+import crypto from 'crypto';
+import bcrypt from 'bcryptjs';
+import { Op } from 'sequelize';
+
+// Essen & Fürsorge / Essen & Trinken auf Bisaya mit verschiedenen Muttersprachen
+const FOOD_CARE_CONVERSATIONS = {
+  // Deutsch -> Bisaya
+  'Deutsch': {
+    'Essen & Fürsorge': [
+      {
+        bisaya: 'Gutom na ko.',
+        native: 'Ich habe Hunger.',
+        explanation: '"Gutom" bedeutet "Hunger", "na" ist "schon", "ko" ist "ich"'
+      },
+      {
+        bisaya: 'Gihikap ko.',
+        native: 'Ich habe Durst.',
+        explanation: '"Gihikap" bedeutet "Durst haben", "ko" ist "ich"'
+      },
+      {
+        bisaya: 'Gusto ka mokaon?',
+        native: 'Möchtest du essen?',
+        explanation: '"Gusto" bedeutet "möchten", "ka" ist "du", "mokaon" ist "essen"'
+      },
+      {
+        bisaya: 'Oo, gusto ko.',
+        native: 'Ja, ich möchte.',
+        explanation: '"Oo" ist "Ja", "gusto ko" ist "ich möchte"'
+      },
+      {
+        bisaya: 'Unsa ang gusto nimo?',
+        native: 'Was möchtest du?',
+        explanation: '"Unsa" ist "Was", "ang" ist Artikel, "gusto nimo" ist "du möchtest"'
+      },
+      {
+        bisaya: 'Gusto ko ug kan-on.',
+        native: 'Ich möchte Reis.',
+        explanation: '"Gusto ko" ist "ich möchte", "ug" ist "und/ein", "kan-on" ist "Reis"'
+      },
+      {
+        bisaya: 'Palihug, hatagi ko ug tubig.',
+        native: 'Bitte gib mir Wasser.',
+        explanation: '"Palihug" ist "Bitte", "hatagi" ist "geben", "ko" ist "mir", "ug tubig" ist "Wasser"'
+      },
+      {
+        bisaya: 'Salamat sa pagkaon.',
+        native: 'Danke für das Essen.',
+        explanation: '"Salamat" ist "Danke", "sa pagkaon" ist "für das Essen"'
+      },
+      {
+        bisaya: 'Lami kaayo!',
+        native: 'Sehr lecker!',
+        explanation: '"Lami" bedeutet "lecker", "kaayo" ist "sehr"'
+      },
+      {
+        bisaya: 'Busog na ko.',
+        native: 'Ich bin satt.',
+        explanation: '"Busog" bedeutet "satt", "na" ist "schon", "ko" ist "ich"'
+      },
+      {
+        bisaya: 'Kumusta ang pagkaon?',
+        native: 'Wie schmeckt das Essen?',
+        explanation: '"Kumusta" ist "Wie", "ang pagkaon" ist "das Essen"'
+      },
+      {
+        bisaya: 'Maayo kaayo ang pagkaon.',
+        native: 'Das Essen ist sehr gut.',
+        explanation: '"Maayo" ist "gut", "kaayo" ist "sehr", "ang pagkaon" ist "das Essen"'
+      }
+    ],
+    'Essen & Trinken': [
+      {
+        bisaya: 'Kan-on',
+        native: 'Reis',
+        explanation: '"Kan-on" ist das grundlegende Wort für "Reis"'
+      },
+      {
+        bisaya: 'Tubig',
+        native: 'Wasser',
+        explanation: '"Tubig" bedeutet "Wasser"'
+      },
+      {
+        bisaya: 'Pan',
+        native: 'Brot',
+        explanation: '"Pan" bedeutet "Brot"'
+      },
+      {
+        bisaya: 'Isda',
+        native: 'Fisch',
+        explanation: '"Isda" bedeutet "Fisch"'
+      },
+      {
+        bisaya: 'Manok',
+        native: 'Huhn',
+        explanation: '"Manok" bedeutet "Huhn"'
+      },
+      {
+        bisaya: 'Baboy',
+        native: 'Schwein',
+        explanation: '"Baboy" bedeutet "Schwein"'
+      },
+      {
+        bisaya: 'Gulay',
+        native: 'Gemüse',
+        explanation: '"Gulay" bedeutet "Gemüse"'
+      },
+      {
+        bisaya: 'Prutas',
+        native: 'Obst',
+        explanation: '"Prutas" bedeutet "Obst"'
+      },
+      {
+        bisaya: 'Gatas',
+        native: 'Milch',
+        explanation: '"Gatas" bedeutet "Milch"'
+      },
+      {
+        bisaya: 'Kape',
+        native: 'Kaffee',
+        explanation: '"Kape" bedeutet "Kaffee"'
+      },
+      {
+        bisaya: 'Tsa',
+        native: 'Tee',
+        explanation: '"Tsa" bedeutet "Tee"'
+      },
+      {
+        bisaya: 'Asin',
+        native: 'Salz',
+        explanation: '"Asin" bedeutet "Salz"'
+      },
+      {
+        bisaya: 'Asukar',
+        native: 'Zucker',
+        explanation: '"Asukar" bedeutet "Zucker"'
+      },
+      {
+        bisaya: 'Tinapay',
+        native: 'Brot (alternativ)',
+        explanation: '"Tinapay" ist eine alternative Bezeichnung für "Brot"'
+      },
+      {
+        bisaya: 'Bugas',
+        native: 'Reis (roh)',
+        explanation: '"Bugas" ist ungekochter Reis, "kan-on" ist gekochter Reis'
+      }
+    ]
+  },
+  // Englisch -> Bisaya
+  'Englisch': {
+    'Essen & Fürsorge': [
+      {
+        bisaya: 'Gutom na ko.',
+        native: 'I am hungry.',
+        explanation: '"Gutom" means "hungry", "na" is "already", "ko" is "I"'
+      },
+      {
+        bisaya: 'Gihikap ko.',
+        native: 'I am thirsty.',
+        explanation: '"Gihikap" means "thirsty", "ko" is "I"'
+      },
+      {
+        bisaya: 'Gusto ka mokaon?',
+        native: 'Do you want to eat?',
+        explanation: '"Gusto" means "want", "ka" is "you", "mokaon" is "to eat"'
+      },
+      {
+        bisaya: 'Oo, gusto ko.',
+        native: 'Yes, I want.',
+        explanation: '"Oo" is "Yes", "gusto ko" is "I want"'
+      },
+      {
+        bisaya: 'Unsa ang gusto nimo?',
+        native: 'What do you want?',
+        explanation: '"Unsa" is "What", "ang" is article, "gusto nimo" is "you want"'
+      },
+      {
+        bisaya: 'Gusto ko ug kan-on.',
+        native: 'I want rice.',
+        explanation: '"Gusto ko" is "I want", "ug" is "a/some", "kan-on" is "rice"'
+      },
+      {
+        bisaya: 'Palihug, hatagi ko ug tubig.',
+        native: 'Please give me water.',
+        explanation: '"Palihug" is "Please", "hatagi" is "give", "ko" is "me", "ug tubig" is "water"'
+      },
+      {
+        bisaya: 'Salamat sa pagkaon.',
+        native: 'Thank you for the food.',
+        explanation: '"Salamat" is "Thank you", "sa pagkaon" is "for the food"'
+      },
+      {
+        bisaya: 'Lami kaayo!',
+        native: 'Very delicious!',
+        explanation: '"Lami" means "delicious", "kaayo" is "very"'
+      },
+      {
+        bisaya: 'Busog na ko.',
+        native: 'I am full.',
+        explanation: '"Busog" means "full", "na" is "already", "ko" is "I"'
+      },
+      {
+        bisaya: 'Kumusta ang pagkaon?',
+        native: 'How is the food?',
+        explanation: '"Kumusta" is "How", "ang pagkaon" is "the food"'
+      },
+      {
+        bisaya: 'Maayo kaayo ang pagkaon.',
+        native: 'The food is very good.',
+        explanation: '"Maayo" is "good", "kaayo" is "very", "ang pagkaon" is "the food"'
+      }
+    ],
+    'Essen & Trinken': [
+      {
+        bisaya: 'Kan-on',
+        native: 'Rice',
+        explanation: '"Kan-on" is the basic word for "rice"'
+      },
+      {
+        bisaya: 'Tubig',
+        native: 'Water',
+        explanation: '"Tubig" means "water"'
+      },
+      {
+        bisaya: 'Pan',
+        native: 'Bread',
+        explanation: '"Pan" means "bread"'
+      },
+      {
+        bisaya: 'Isda',
+        native: 'Fish',
+        explanation: '"Isda" means "fish"'
+      },
+      {
+        bisaya: 'Manok',
+        native: 'Chicken',
+        explanation: '"Manok" means "chicken"'
+      },
+      {
+        bisaya: 'Baboy',
+        native: 'Pig',
+        explanation: '"Baboy" means "pig"'
+      },
+      {
+        bisaya: 'Gulay',
+        native: 'Vegetables',
+        explanation: '"Gulay" means "vegetables"'
+      },
+      {
+        bisaya: 'Prutas',
+        native: 'Fruit',
+        explanation: '"Prutas" means "fruit"'
+      },
+      {
+        bisaya: 'Gatas',
+        native: 'Milk',
+        explanation: '"Gatas" means "milk"'
+      },
+      {
+        bisaya: 'Kape',
+        native: 'Coffee',
+        explanation: '"Kape" means "coffee"'
+      },
+      {
+        bisaya: 'Tsa',
+        native: 'Tea',
+        explanation: '"Tsa" means "tea"'
+      },
+      {
+        bisaya: 'Asin',
+        native: 'Salt',
+        explanation: '"Asin" means "salt"'
+      },
+      {
+        bisaya: 'Asukar',
+        native: 'Sugar',
+        explanation: '"Asukar" means "sugar"'
+      },
+      {
+        bisaya: 'Tinapay',
+        native: 'Bread (alternative)',
+        explanation: '"Tinapay" is an alternative term for "bread"'
+      },
+      {
+        bisaya: 'Bugas',
+        native: 'Rice (uncooked)',
+        explanation: '"Bugas" is uncooked rice, "kan-on" is cooked rice'
+      }
+    ]
+  }
+};
+
+// Erweitere für weitere Sprachen (Spanisch, Französisch, Italienisch, Portugiesisch, Tagalog)
+const ADDITIONAL_LANGUAGES = {
+  'Spanisch': {
+    'Essen & Fürsorge': [
+      { bisaya: 'Gutom na ko.', native: 'Tengo hambre.', explanation: '"Gutom" significa "hambre", "na" es "ya", "ko" es "yo"' },
+      { bisaya: 'Gihikap ko.', native: 'Tengo sed.', explanation: '"Gihikap" significa "sed", "ko" es "yo"' },
+      { bisaya: 'Gusto ka mokaon?', native: '¿Quieres comer?', explanation: '"Gusto" significa "querer", "ka" es "tú", "mokaon" es "comer"' },
+      { bisaya: 'Oo, gusto ko.', native: 'Sí, quiero.', explanation: '"Oo" es "Sí", "gusto ko" es "quiero"' },
+      { bisaya: 'Unsa ang gusto nimo?', native: '¿Qué quieres?', explanation: '"Unsa" es "Qué", "ang" es artículo, "gusto nimo" es "quieres"' },
+      { bisaya: 'Gusto ko ug kan-on.', native: 'Quiero arroz.', explanation: '"Gusto ko" es "quiero", "ug kan-on" es "arroz"' },
+      { bisaya: 'Palihug, hatagi ko ug tubig.', native: 'Por favor, dame agua.', explanation: '"Palihug" es "Por favor", "hatagi" es "dar", "ko" es "me", "ug tubig" es "agua"' },
+      { bisaya: 'Salamat sa pagkaon.', native: 'Gracias por la comida.', explanation: '"Salamat" es "Gracias", "sa pagkaon" es "por la comida"' },
+      { bisaya: 'Lami kaayo!', native: '¡Muy delicioso!', explanation: '"Lami" significa "delicioso", "kaayo" es "muy"' },
+      { bisaya: 'Busog na ko.', native: 'Estoy lleno.', explanation: '"Busog" significa "lleno", "na" es "ya", "ko" es "yo"' },
+      { bisaya: 'Kumusta ang pagkaon?', native: '¿Cómo está la comida?', explanation: '"Kumusta" es "Cómo", "ang pagkaon" es "la comida"' },
+      { bisaya: 'Maayo kaayo ang pagkaon.', native: 'La comida está muy buena.', explanation: '"Maayo" es "buena", "kaayo" es "muy", "ang pagkaon" es "la comida"' }
+    ],
+    'Essen & Trinken': [
+      { bisaya: 'Kan-on', native: 'Arroz', explanation: '"Kan-on" es la palabra básica para "arroz"' },
+      { bisaya: 'Tubig', native: 'Agua', explanation: '"Tubig" significa "agua"' },
+      { bisaya: 'Pan', native: 'Pan', explanation: '"Pan" significa "pan"' },
+      { bisaya: 'Isda', native: 'Pescado', explanation: '"Isda" significa "pescado"' },
+      { bisaya: 'Manok', native: 'Pollo', explanation: '"Manok" significa "pollo"' },
+      { bisaya: 'Baboy', native: 'Cerdo', explanation: '"Baboy" significa "cerdo"' },
+      { bisaya: 'Gulay', native: 'Verduras', explanation: '"Gulay" significa "verduras"' },
+      { bisaya: 'Prutas', native: 'Fruta', explanation: '"Prutas" significa "fruta"' },
+      { bisaya: 'Gatas', native: 'Leche', explanation: '"Gatas" significa "leche"' },
+      { bisaya: 'Kape', native: 'Café', explanation: '"Kape" significa "café"' },
+      { bisaya: 'Tsa', native: 'Té', explanation: '"Tsa" significa "té"' },
+      { bisaya: 'Asin', native: 'Sal', explanation: '"Asin" significa "sal"' },
+      { bisaya: 'Asukar', native: 'Azúcar', explanation: '"Asukar" significa "azúcar"' },
+      { bisaya: 'Tinapay', native: 'Pan (alternativo)', explanation: '"Tinapay" es un término alternativo para "pan"' },
+      { bisaya: 'Bugas', native: 'Arroz (crudo)', explanation: '"Bugas" es arroz crudo, "kan-on" es arroz cocido' }
+    ]
+  },
+  'Französisch': {
+    'Essen & Fürsorge': [
+      { bisaya: 'Gutom na ko.', native: 'J\'ai faim.', explanation: '"Gutom" signifie "faim", "na" est "déjà", "ko" est "je"' },
+      { bisaya: 'Gihikap ko.', native: 'J\'ai soif.', explanation: '"Gihikap" signifie "soif", "ko" est "je"' },
+      { bisaya: 'Gusto ka mokaon?', native: 'Tu veux manger?', explanation: '"Gusto" signifie "vouloir", "ka" est "tu", "mokaon" est "manger"' },
+      { bisaya: 'Oo, gusto ko.', native: 'Oui, je veux.', explanation: '"Oo" est "Oui", "gusto ko" est "je veux"' },
+      { bisaya: 'Unsa ang gusto nimo?', native: 'Que veux-tu?', explanation: '"Unsa" est "Que", "ang" est article, "gusto nimo" est "tu veux"' },
+      { bisaya: 'Gusto ko ug kan-on.', native: 'Je veux du riz.', explanation: '"Gusto ko" est "je veux", "ug kan-on" est "riz"' },
+      { bisaya: 'Palihug, hatagi ko ug tubig.', native: 'S\'il te plaît, donne-moi de l\'eau.', explanation: '"Palihug" est "S\'il te plaît", "hatagi" est "donner", "ko" est "moi", "ug tubig" est "eau"' },
+      { bisaya: 'Salamat sa pagkaon.', native: 'Merci pour la nourriture.', explanation: '"Salamat" est "Merci", "sa pagkaon" est "pour la nourriture"' },
+      { bisaya: 'Lami kaayo!', native: 'Très délicieux!', explanation: '"Lami" signifie "délicieux", "kaayo" est "très"' },
+      { bisaya: 'Busog na ko.', native: 'Je suis rassasié.', explanation: '"Busog" signifie "rassasié", "na" est "déjà", "ko" est "je"' },
+      { bisaya: 'Kumusta ang pagkaon?', native: 'Comment est la nourriture?', explanation: '"Kumusta" est "Comment", "ang pagkaon" est "la nourriture"' },
+      { bisaya: 'Maayo kaayo ang pagkaon.', native: 'La nourriture est très bonne.', explanation: '"Maayo" est "bonne", "kaayo" est "très", "ang pagkaon" est "la nourriture"' }
+    ],
+    'Essen & Trinken': [
+      { bisaya: 'Kan-on', native: 'Riz', explanation: '"Kan-on" est le mot de base pour "riz"' },
+      { bisaya: 'Tubig', native: 'Eau', explanation: '"Tubig" signifie "eau"' },
+      { bisaya: 'Pan', native: 'Pain', explanation: '"Pan" signifie "pain"' },
+      { bisaya: 'Isda', native: 'Poisson', explanation: '"Isda" signifie "poisson"' },
+      { bisaya: 'Manok', native: 'Poulet', explanation: '"Manok" signifie "poulet"' },
+      { bisaya: 'Baboy', native: 'Porc', explanation: '"Baboy" signifie "porc"' },
+      { bisaya: 'Gulay', native: 'Légumes', explanation: '"Gulay" signifie "légumes"' },
+      { bisaya: 'Prutas', native: 'Fruit', explanation: '"Prutas" signifie "fruit"' },
+      { bisaya: 'Gatas', native: 'Lait', explanation: '"Gatas" signifie "lait"' },
+      { bisaya: 'Kape', native: 'Café', explanation: '"Kape" signifie "café"' },
+      { bisaya: 'Tsa', native: 'Thé', explanation: '"Tsa" signifie "thé"' },
+      { bisaya: 'Asin', native: 'Sel', explanation: '"Asin" signifie "sel"' },
+      { bisaya: 'Asukar', native: 'Sucre', explanation: '"Asukar" signifie "sucre"' },
+      { bisaya: 'Tinapay', native: 'Pain (alternatif)', explanation: '"Tinapay" est un terme alternatif pour "pain"' },
+      { bisaya: 'Bugas', native: 'Riz (cru)', explanation: '"Bugas" est riz cru, "kan-on" est riz cuit' }
+    ]
+  },
+  'Italienisch': {
+    'Essen & Fürsorge': [
+      { bisaya: 'Gutom na ko.', native: 'Ho fame.', explanation: '"Gutom" significa "fame", "na" è "già", "ko" è "io"' },
+      { bisaya: 'Gihikap ko.', native: 'Ho sete.', explanation: '"Gihikap" significa "sete", "ko" è "io"' },
+      { bisaya: 'Gusto ka mokaon?', native: 'Vuoi mangiare?', explanation: '"Gusto" significa "volere", "ka" è "tu", "mokaon" è "mangiare"' },
+      { bisaya: 'Oo, gusto ko.', native: 'Sì, voglio.', explanation: '"Oo" è "Sì", "gusto ko" è "voglio"' },
+      { bisaya: 'Unsa ang gusto nimo?', native: 'Cosa vuoi?', explanation: '"Unsa" è "Cosa", "ang" è articolo, "gusto nimo" è "vuoi"' },
+      { bisaya: 'Gusto ko ug kan-on.', native: 'Voglio riso.', explanation: '"Gusto ko" è "voglio", "ug kan-on" è "riso"' },
+      { bisaya: 'Palihug, hatagi ko ug tubig.', native: 'Per favore, dammi acqua.', explanation: '"Palihug" è "Per favore", "hatagi" è "dare", "ko" è "mi", "ug tubig" è "acqua"' },
+      { bisaya: 'Salamat sa pagkaon.', native: 'Grazie per il cibo.', explanation: '"Salamat" è "Grazie", "sa pagkaon" è "per il cibo"' },
+      { bisaya: 'Lami kaayo!', native: 'Molto delizioso!', explanation: '"Lami" significa "delizioso", "kaayo" è "molto"' },
+      { bisaya: 'Busog na ko.', native: 'Sono sazio.', explanation: '"Busog" significa "sazio", "na" è "già", "ko" è "io"' },
+      { bisaya: 'Kumusta ang pagkaon?', native: 'Com\'è il cibo?', explanation: '"Kumusta" è "Come", "ang pagkaon" è "il cibo"' },
+      { bisaya: 'Maayo kaayo ang pagkaon.', native: 'Il cibo è molto buono.', explanation: '"Maayo" è "buono", "kaayo" è "molto", "ang pagkaon" è "il cibo"' }
+    ],
+    'Essen & Trinken': [
+      { bisaya: 'Kan-on', native: 'Riso', explanation: '"Kan-on" è la parola base per "riso"' },
+      { bisaya: 'Tubig', native: 'Acqua', explanation: '"Tubig" significa "acqua"' },
+      { bisaya: 'Pan', native: 'Pane', explanation: '"Pan" significa "pane"' },
+      { bisaya: 'Isda', native: 'Pesce', explanation: '"Isda" significa "pesce"' },
+      { bisaya: 'Manok', native: 'Pollo', explanation: '"Manok" significa "pollo"' },
+      { bisaya: 'Baboy', native: 'Maiale', explanation: '"Baboy" significa "maiale"' },
+      { bisaya: 'Gulay', native: 'Verdura', explanation: '"Gulay" significa "verdura"' },
+      { bisaya: 'Prutas', native: 'Frutta', explanation: '"Prutas" significa "frutta"' },
+      { bisaya: 'Gatas', native: 'Latte', explanation: '"Gatas" significa "latte"' },
+      { bisaya: 'Kape', native: 'Caffè', explanation: '"Kape" significa "caffè"' },
+      { bisaya: 'Tsa', native: 'Tè', explanation: '"Tsa" significa "tè"' },
+      { bisaya: 'Asin', native: 'Sale', explanation: '"Asin" significa "sale"' },
+      { bisaya: 'Asukar', native: 'Zucchero', explanation: '"Asukar" significa "zucchero"' },
+      { bisaya: 'Tinapay', native: 'Pane (alternativo)', explanation: '"Tinapay" è un termine alternativo per "pane"' },
+      { bisaya: 'Bugas', native: 'Riso (crudo)', explanation: '"Bugas" è riso crudo, "kan-on" è riso cotto' }
+    ]
+  },
+  'Portugiesisch': {
+    'Essen & Fürsorge': [
+      { bisaya: 'Gutom na ko.', native: 'Tenho fome.', explanation: '"Gutom" significa "fome", "na" é "já", "ko" é "eu"' },
+      { bisaya: 'Gihikap ko.', native: 'Tenho sede.', explanation: '"Gihikap" significa "sede", "ko" é "eu"' },
+      { bisaya: 'Gusto ka mokaon?', native: 'Quer comer?', explanation: '"Gusto" significa "querer", "ka" é "você", "mokaon" é "comer"' },
+      { bisaya: 'Oo, gusto ko.', native: 'Sim, quero.', explanation: '"Oo" é "Sim", "gusto ko" é "quero"' },
+      { bisaya: 'Unsa ang gusto nimo?', native: 'O que você quer?', explanation: '"Unsa" é "O que", "ang" é artigo, "gusto nimo" é "você quer"' },
+      { bisaya: 'Gusto ko ug kan-on.', native: 'Quero arroz.', explanation: '"Gusto ko" é "quero", "ug kan-on" é "arroz"' },
+      { bisaya: 'Palihug, hatagi ko ug tubig.', native: 'Por favor, me dê água.', explanation: '"Palihug" é "Por favor", "hatagi" é "dar", "ko" é "me", "ug tubig" é "água"' },
+      { bisaya: 'Salamat sa pagkaon.', native: 'Obrigado pela comida.', explanation: '"Salamat" é "Obrigado", "sa pagkaon" é "pela comida"' },
+      { bisaya: 'Lami kaayo!', native: 'Muito delicioso!', explanation: '"Lami" significa "delicioso", "kaayo" é "muito"' },
+      { bisaya: 'Busog na ko.', native: 'Estou cheio.', explanation: '"Busog" significa "cheio", "na" é "já", "ko" é "eu"' },
+      { bisaya: 'Kumusta ang pagkaon?', native: 'Como está a comida?', explanation: '"Kumusta" é "Como", "ang pagkaon" é "a comida"' },
+      { bisaya: 'Maayo kaayo ang pagkaon.', native: 'A comida está muito boa.', explanation: '"Maayo" é "boa", "kaayo" é "muito", "ang pagkaon" é "a comida"' }
+    ],
+    'Essen & Trinken': [
+      { bisaya: 'Kan-on', native: 'Arroz', explanation: '"Kan-on" é a palavra básica para "arroz"' },
+      { bisaya: 'Tubig', native: 'Água', explanation: '"Tubig" significa "água"' },
+      { bisaya: 'Pan', native: 'Pão', explanation: '"Pan" significa "pão"' },
+      { bisaya: 'Isda', native: 'Peixe', explanation: '"Isda" significa "peixe"' },
+      { bisaya: 'Manok', native: 'Frango', explanation: '"Manok" significa "frango"' },
+      { bisaya: 'Baboy', native: 'Porco', explanation: '"Baboy" significa "porco"' },
+      { bisaya: 'Gulay', native: 'Legumes', explanation: '"Gulay" significa "legumes"' },
+      { bisaya: 'Prutas', native: 'Fruta', explanation: '"Prutas" significa "fruta"' },
+      { bisaya: 'Gatas', native: 'Leite', explanation: '"Gatas" significa "leite"' },
+      { bisaya: 'Kape', native: 'Café', explanation: '"Kape" significa "café"' },
+      { bisaya: 'Tsa', native: 'Chá', explanation: '"Tsa" significa "chá"' },
+      { bisaya: 'Asin', native: 'Sal', explanation: '"Asin" significa "sal"' },
+      { bisaya: 'Asukar', native: 'Açúcar', explanation: '"Asukar" significa "açúcar"' },
+      { bisaya: 'Tinapay', native: 'Pão (alternativo)', explanation: '"Tinapay" é um termo alternativo para "pão"' },
+      { bisaya: 'Bugas', native: 'Arroz (cru)', explanation: '"Bugas" é arroz cru, "kan-on" é arroz cozido' }
+    ]
+  },
+  'Tagalog': {
+    'Essen & Fürsorge': [
+      { bisaya: 'Gutom na ko.', native: 'Gutom na ako.', explanation: '"Gutom" ay "gutom", "na" ay "na", "ko" ay "ako"' },
+      { bisaya: 'Gihikap ko.', native: 'Nauuhaw ako.', explanation: '"Gihikap" ay "nauuhaw", "ko" ay "ako"' },
+      { bisaya: 'Gusto ka mokaon?', native: 'Gusto mo bang kumain?', explanation: '"Gusto" ay "gusto", "ka" ay "mo", "mokaon" ay "kumain"' },
+      { bisaya: 'Oo, gusto ko.', native: 'Oo, gusto ko.', explanation: '"Oo" ay "Oo", "gusto ko" ay "gusto ko"' },
+      { bisaya: 'Unsa ang gusto nimo?', native: 'Ano ang gusto mo?', explanation: '"Unsa" ay "Ano", "ang" ay "ang", "gusto nimo" ay "gusto mo"' },
+      { bisaya: 'Gusto ko ug kan-on.', native: 'Gusto ko ng kanin.', explanation: '"Gusto ko" ay "gusto ko", "ug kan-on" ay "kanin"' },
+      { bisaya: 'Palihug, hatagi ko ug tubig.', native: 'Pakiusap, bigyan mo ako ng tubig.', explanation: '"Palihug" ay "Pakiusap", "hatagi" ay "bigyan", "ko" ay "ako", "ug tubig" ay "tubig"' },
+      { bisaya: 'Salamat sa pagkaon.', native: 'Salamat sa pagkain.', explanation: '"Salamat" ay "Salamat", "sa pagkaon" ay "sa pagkain"' },
+      { bisaya: 'Lami kaayo!', native: 'Masarap talaga!', explanation: '"Lami" ay "masarap", "kaayo" ay "talaga"' },
+      { bisaya: 'Busog na ko.', native: 'Busog na ako.', explanation: '"Busog" ay "busog", "na" ay "na", "ko" ay "ako"' },
+      { bisaya: 'Kumusta ang pagkaon?', native: 'Kumusta ang pagkain?', explanation: '"Kumusta" ay "Kumusta", "ang pagkaon" ay "ang pagkain"' },
+      { bisaya: 'Maayo kaayo ang pagkaon.', native: 'Mabuti talaga ang pagkain.', explanation: '"Maayo" ay "mabuti", "kaayo" ay "talaga", "ang pagkaon" ay "ang pagkain"' }
+    ],
+    'Essen & Trinken': [
+      { bisaya: 'Kan-on', native: 'Kanin', explanation: '"Kan-on" ay ang salitang base para sa "kanin"' },
+      { bisaya: 'Tubig', native: 'Tubig', explanation: '"Tubig" ay "tubig"' },
+      { bisaya: 'Pan', native: 'Tinapay', explanation: '"Pan" ay "tinapay"' },
+      { bisaya: 'Isda', native: 'Isda', explanation: '"Isda" ay "isda"' },
+      { bisaya: 'Manok', native: 'Manok', explanation: '"Manok" ay "manok"' },
+      { bisaya: 'Baboy', native: 'Baboy', explanation: '"Baboy" ay "baboy"' },
+      { bisaya: 'Gulay', native: 'Gulay', explanation: '"Gulay" ay "gulay"' },
+      { bisaya: 'Prutas', native: 'Prutas', explanation: '"Prutas" ay "prutas"' },
+      { bisaya: 'Gatas', native: 'Gatas', explanation: '"Gatas" ay "gatas"' },
+      { bisaya: 'Kape', native: 'Kape', explanation: '"Kape" ay "kape"' },
+      { bisaya: 'Tsa', native: 'Tsa', explanation: '"Tsa" ay "tsa"' },
+      { bisaya: 'Asin', native: 'Asin', explanation: '"Asin" ay "asin"' },
+      { bisaya: 'Asukar', native: 'Asukal', explanation: '"Asukar" ay "asukal"' },
+      { bisaya: 'Tinapay', native: 'Tinapay', explanation: '"Tinapay" ay "tinapay"' },
+      { bisaya: 'Bugas', native: 'Bigas', explanation: '"Bugas" ay "bigas", "kan-on" ay "kanin"' }
+    ]
+  }
+};
+
+// Kombiniere alle Sprachen
+const ALL_FOOD_CARE = { ...FOOD_CARE_CONVERSATIONS, ...ADDITIONAL_LANGUAGES };
+
+async function findOrCreateSystemUser() {
+  let systemUser = await User.findOne({
+    where: {
+      username: { [Op.in]: ['system', 'admin', 'System', 'Admin'] }
+    }
+  });
+
+  if (!systemUser) {
+    console.error('❌ System-Benutzer nicht gefunden.');
+    throw new Error('System user not found');
+  }
+
+  return systemUser;
+}
+
+async function updateFoodCareExercises() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  const systemUser = await findOrCreateSystemUser();
+  console.log(`Verwende System-Benutzer: ${systemUser.username} (ID: ${systemUser.id})\n`);
+
+  // Finde alle Bisaya-Kurse
+  const [bisayaLanguage] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    {
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  if (!bisayaLanguage) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const bisayaLanguageId = bisayaLanguage.id;
+
+  // Hole alle Bisaya-Kurse mit native language info
+  const courses = await sequelize.query(
+    `SELECT 
+      c.id,
+      c.title,
+      c.owner_user_id,
+      c.native_language_id,
+      nl.name as native_language_name
+    FROM community.vocab_course c
+    LEFT JOIN community.vocab_language nl ON c.native_language_id = nl.id
+    WHERE c.language_id = :bisayaLanguageId`,
+    {
+      replacements: { bisayaLanguageId },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`Gefunden: ${courses.length} Bisaya-Kurse\n`);
+
+  let totalExercisesCreated = 0;
+  let totalLessonsUpdated = 0;
+
+  for (const course of courses) {
+    console.log(`📚 Kurs: ${course.title} (ID: ${course.id})`);
+    const nativeLangName = course.native_language_name || 'Deutsch';
+    console.log(`   Muttersprache: ${nativeLangName}`);
+
+    // Finde "Essen & Fürsorge" und "Essen & Trinken" Lektionen
+    const lessons = await VocabCourseLesson.findAll({
+      where: {
+        courseId: course.id,
+        title: ['Essen & Fürsorge', 'Essen & Trinken']
+      },
+      order: [['lessonNumber', 'ASC']]
+    });
+
+    console.log(`   ${lessons.length} Lektion(en) gefunden\n`);
+
+    for (const lesson of lessons) {
+      const conversations = ALL_FOOD_CARE[nativeLangName]?.[lesson.title];
+      
+      if (!conversations || conversations.length === 0) {
+        console.log(`   ⚠️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - keine Übungen für Muttersprache "${nativeLangName}" definiert`);
+        continue;
+      }
+
+      // Lösche bestehende Übungen
+      const deletedCount = await VocabGrammarExercise.destroy({
+        where: { lessonId: lesson.id }
+      });
+
+      console.log(`   🗑️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${deletedCount} alte Übung(en) gelöscht`);
+
+      // Erstelle neue Übungen basierend auf dem Lektionstyp
+      let exerciseNumber = 1;
+      
+      if (lesson.title === 'Essen & Fürsorge') {
+        // Gesprächsübungen für "Essen & Fürsorge"
+        for (const conv of conversations) {
+          // Multiple Choice: Übersetzung von Muttersprache zu Bisaya
+          await VocabGrammarExercise.create({
+            lessonId: lesson.id,
+            exerciseTypeId: 2, // multiple_choice
+            exerciseNumber: exerciseNumber++,
+            title: `Wie sagt man "${conv.native}"?`,
+            instruction: 'Wähle die richtige Übersetzung.',
+            questionData: JSON.stringify({
+              type: 'multiple_choice',
+              question: `Wie sagt man "${conv.native}" auf Bisaya?`,
+              options: [
+                conv.bisaya,
+                conversations[(exerciseNumber - 2 + 1) % conversations.length]?.bisaya || 'Salamat',
+                conversations[(exerciseNumber - 2 + 2) % conversations.length]?.bisaya || 'Maayo',
+                conversations[(exerciseNumber - 2 + 3) % conversations.length]?.bisaya || 'Palihug'
+              ]
+            }),
+            answerData: JSON.stringify({
+              type: 'multiple_choice',
+              correctAnswer: 0
+            }),
+            explanation: conv.explanation,
+            createdByUserId: course.owner_user_id || systemUser.id
+          });
+          totalExercisesCreated++;
+
+          // Multiple Choice: Übersetzung von Bisaya zu Muttersprache
+          await VocabGrammarExercise.create({
+            lessonId: lesson.id,
+            exerciseTypeId: 2, // multiple_choice
+            exerciseNumber: exerciseNumber++,
+            title: `Was bedeutet "${conv.bisaya}"?`,
+            instruction: 'Wähle die richtige Übersetzung.',
+            questionData: JSON.stringify({
+              type: 'multiple_choice',
+              question: `Was bedeutet "${conv.bisaya}"?`,
+              options: [
+                conv.native,
+                conversations[(exerciseNumber - 3 + 1) % conversations.length]?.native || 'Danke',
+                conversations[(exerciseNumber - 3 + 2) % conversations.length]?.native || 'Bitte',
+                conversations[(exerciseNumber - 3 + 3) % conversations.length]?.native || 'Gut'
+              ]
+            }),
+            answerData: JSON.stringify({
+              type: 'multiple_choice',
+              correctAnswer: 0
+            }),
+            explanation: conv.explanation,
+            createdByUserId: course.owner_user_id || systemUser.id
+          });
+          totalExercisesCreated++;
+        }
+
+        // Transformation-Übungen
+        const selectedConvs = conversations.slice(0, 3);
+        for (const conv of selectedConvs) {
+          await VocabGrammarExercise.create({
+            lessonId: lesson.id,
+            exerciseTypeId: 4, // transformation
+            exerciseNumber: exerciseNumber++,
+            title: `Übersetze: "${conv.native}"`,
+            instruction: 'Übersetze den Satz ins Bisaya.',
+            questionData: JSON.stringify({
+              type: 'transformation',
+              text: conv.native,
+              sourceLanguage: nativeLangName,
+              targetLanguage: 'Bisaya'
+            }),
+            answerData: JSON.stringify({
+              type: 'transformation',
+              correct: conv.bisaya,
+              alternatives: []
+            }),
+            explanation: conv.explanation,
+            createdByUserId: course.owner_user_id || systemUser.id
+          });
+          totalExercisesCreated++;
+        }
+      } else if (lesson.title === 'Essen & Trinken') {
+        // Vokabular-Übungen für "Essen & Trinken"
+        for (const vocab of conversations) {
+          // Multiple Choice: Muttersprache -> Bisaya
+          await VocabGrammarExercise.create({
+            lessonId: lesson.id,
+            exerciseTypeId: 2, // multiple_choice
+            exerciseNumber: exerciseNumber++,
+            title: `Wie sagt man "${vocab.native}"?`,
+            instruction: 'Wähle die richtige Übersetzung.',
+            questionData: JSON.stringify({
+              type: 'multiple_choice',
+              question: `Wie sagt man "${vocab.native}" auf Bisaya?`,
+              options: [
+                vocab.bisaya,
+                conversations[(exerciseNumber - 2 + 1) % conversations.length]?.bisaya || 'Salamat',
+                conversations[(exerciseNumber - 2 + 2) % conversations.length]?.bisaya || 'Maayo',
+                conversations[(exerciseNumber - 2 + 3) % conversations.length]?.bisaya || 'Palihug'
+              ]
+            }),
+            answerData: JSON.stringify({
+              type: 'multiple_choice',
+              correctAnswer: 0
+            }),
+            explanation: vocab.explanation,
+            createdByUserId: course.owner_user_id || systemUser.id
+          });
+          totalExercisesCreated++;
+
+          // Multiple Choice: Bisaya -> Muttersprache
+          await VocabGrammarExercise.create({
+            lessonId: lesson.id,
+            exerciseTypeId: 2, // multiple_choice
+            exerciseNumber: exerciseNumber++,
+            title: `Was bedeutet "${vocab.bisaya}"?`,
+            instruction: 'Wähle die richtige Übersetzung.',
+            questionData: JSON.stringify({
+              type: 'multiple_choice',
+              question: `Was bedeutet "${vocab.bisaya}"?`,
+              options: [
+                vocab.native,
+                conversations[(exerciseNumber - 3 + 1) % conversations.length]?.native || 'Danke',
+                conversations[(exerciseNumber - 3 + 2) % conversations.length]?.native || 'Bitte',
+                conversations[(exerciseNumber - 3 + 3) % conversations.length]?.native || 'Gut'
+              ]
+            }),
+            answerData: JSON.stringify({
+              type: 'multiple_choice',
+              correctAnswer: 0
+            }),
+            explanation: vocab.explanation,
+            createdByUserId: course.owner_user_id || systemUser.id
+          });
+          totalExercisesCreated++;
+        }
+      }
+    }
+
+    console.log(`   ✅ ${lessons.length} Lektion(en) aktualisiert\n`);
+    totalLessonsUpdated += lessons.length;
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${totalLessonsUpdated} Lektionen aktualisiert`);
+  console.log(`   ${totalExercisesCreated} neue Grammatik-Übungen erstellt`);
+}
+
+updateFoodCareExercises()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/update-survival-sentences-exercises.js

@@ -0,0 +1,454 @@
+#!/usr/bin/env node
+/**
+ * Script zum Aktualisieren der "Überlebenssätze"-Übungen in Bisaya-Kursen
+ * 
+ * Verwendung:
+ * node backend/scripts/update-survival-sentences-exercises.js
+ * 
+ * Ersetzt bestehende generische Übungen durch spezifische Überlebenssätze-Übungen.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import User from '../models/community/user.js';
+
+// Spezifische Übungen für Überlebenssätze
+const SURVIVAL_EXERCISES = {
+  'Überlebenssätze - Teil 1': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Ich verstehe nicht"?',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Ich verstehe nicht" auf Bisaya?',
+        options: ['Wala ko kasabot', 'Palihug', 'Salamat', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Wala ko kasabot" bedeutet "Ich verstehe nicht" - sehr wichtig für Anfänger!'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Kannst du das wiederholen?"?',
+      instruction: 'Wähle die richtige Bitte aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Kannst du das wiederholen?" auf Bisaya?',
+        options: ['Palihug ka mubalik?', 'Salamat', 'Maayo', 'Kumusta ka?']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Palihug ka mubalik?" bedeutet "Bitte kannst du wiederholen?" - essentiell für das Lernen!'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Wo ist...?"?',
+      instruction: 'Wähle die richtige Frage aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Wo ist die Toilette?" auf Bisaya?',
+        options: ['Asa ang CR?', 'Kumusta ka?', 'Salamat', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Asa ang CR?" bedeutet "Wo ist die Toilette?" - "Asa" = "Wo", "CR" = "Comfort Room" (Toilette).'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Vervollständige den Satz: "Ich verstehe nicht"',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Ich verstehe nicht" auf Bisaya?',
+        options: ['Wala ko kasabot', 'Dili ko kasabot', 'Wala ko makasabot', 'Dili ko makasabot']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Wala ko kasabot" bedeutet "Ich verstehe nicht".'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Vervollständige den Satz: "Bitte wiederholen"',
+      instruction: 'Wähle die richtige Übersetzung.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Bitte wiederholen" auf Bisaya?',
+        options: ['Palihug ka mubalik?', 'Palihug balik', 'Salamat mubalik', 'Maayo mubalik']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Palihug ka mubalik?" bedeutet "Bitte kannst du wiederholen?".'
+    }
+  ],
+
+  'Überlebenssätze - Teil 2': [
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Wie viel kostet das?"?',
+      instruction: 'Wähle die richtige Frage aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Wie viel kostet das?" auf Bisaya?',
+        options: ['Tagpila ni?', 'Asa ni?', 'Unsa ni?', 'Kinsa ni?']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Tagpila ni?" bedeutet "Wie viel kostet das?" - sehr nützlich beim Einkaufen!'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Entschuldigung"?',
+      instruction: 'Wähle die richtige Entschuldigung aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Entschuldigung" auf Bisaya?',
+        options: ['Pasensya', 'Salamat', 'Palihug', 'Maayo']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Pasensya" bedeutet "Entschuldigung" oder "Entschuldige bitte" - wichtig für höfliche Kommunikation.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Was ist das?"?',
+      instruction: 'Wähle die richtige Frage aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Was ist das?" auf Bisaya?',
+        options: ['Unsa ni?', 'Asa ni?', 'Tagpila ni?', 'Kinsa ni?']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Unsa ni?" bedeutet "Was ist das?" - "Unsa" = "Was", "ni" = "das".'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Bitte langsam"?',
+      instruction: 'Wähle die richtige Bitte aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Bitte langsam" auf Bisaya?',
+        options: ['Hinay-hinay lang', 'Palihug lang', 'Maayo lang', 'Salamat lang']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Hinay-hinay lang" bedeutet "Bitte langsam" - sehr wichtig, wenn jemand zu schnell spricht!'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Ich spreche kein Bisaya"?',
+      instruction: 'Wähle die richtige Aussage aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Ich spreche kein Bisaya" auf Bisaya?',
+        options: ['Dili ko mag-Bisaya', 'Wala ko mag-Bisaya', 'Maayo ko mag-Bisaya', 'Salamat ko mag-Bisaya']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Dili ko mag-Bisaya" bedeutet "Ich spreche kein Bisaya" - nützlich, um zu erklären, dass du noch lernst.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Kannst du das aufschreiben?"?',
+      instruction: 'Wähle die richtige Bitte aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Kannst du das aufschreiben?" auf Bisaya?',
+        options: ['Palihug isulat ni', 'Palihug basahon ni', 'Palihug sulaton ni', 'Palihug pakigamit ni']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Palihug isulat ni" bedeutet "Bitte schreibe das auf" - hilfreich beim Lernen neuer Wörter.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Wie sagt man "Ich bin verloren"?',
+      instruction: 'Wähle die richtige Aussage aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Wie sagt man "Ich bin verloren" auf Bisaya?',
+        options: ['Nawala ko', 'Naa ko', 'Maayo ko', 'Salamat ko']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Nawala ko" bedeutet "Ich bin verloren" - wichtig, wenn du Hilfe brauchst.'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Wichtige Fragen bilden',
+      instruction: 'Fülle die Lücken mit den richtigen Fragewörtern.',
+      questionData: {
+        type: 'gap_fill',
+        text: '{gap} ni? (Wie viel kostet das?) | {gap} ni? (Was ist das?) | {gap} lang (Bitte langsam)',
+        gaps: 3
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['Tagpila', 'Unsa', 'Hinay-hinay']
+      },
+      explanation: '"Tagpila" = "Wie viel", "Unsa" = "Was", "Hinay-hinay lang" = "Bitte langsam".'
+    },
+    {
+      exerciseTypeId: 1, // gap_fill
+      title: 'Überlebenssätze vervollständigen',
+      instruction: 'Fülle die Lücken mit den richtigen Wörtern.',
+      questionData: {
+        type: 'gap_fill',
+        text: 'Palihug {gap} ni (Bitte schreibe das auf) | {gap} ko (Ich bin verloren) | Dili ko {gap} (Ich spreche kein Bisaya)',
+        gaps: 3
+      },
+      answerData: {
+        type: 'gap_fill',
+        answers: ['isulat', 'Nawala', 'mag-Bisaya']
+      },
+      explanation: '"isulat" = "aufschreiben", "Nawala" = "verloren", "mag-Bisaya" = "Bisaya sprechen".'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Was bedeutet "Tagpila"?',
+      instruction: 'Wähle die richtige Bedeutung aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Tagpila"?',
+        options: ['Wie viel', 'Was', 'Wo', 'Wer']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Tagpila" bedeutet "Wie viel" und wird verwendet, um nach Preisen zu fragen.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Was bedeutet "Pasensya"?',
+      instruction: 'Wähle die richtige Bedeutung aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Pasensya"?',
+        options: ['Entschuldigung', 'Danke', 'Bitte', 'Gut']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Pasensya" bedeutet "Entschuldigung" oder "Entschuldige bitte" - wichtig für höfliche Kommunikation.'
+    },
+    {
+      exerciseTypeId: 2, // multiple_choice
+      title: 'Was bedeutet "Hinay-hinay lang"?',
+      instruction: 'Wähle die richtige Bedeutung aus.',
+      questionData: {
+        type: 'multiple_choice',
+        question: 'Was bedeutet "Hinay-hinay lang"?',
+        options: ['Bitte langsam', 'Bitte schnell', 'Bitte laut', 'Bitte leise']
+      },
+      answerData: {
+        type: 'multiple_choice',
+        correctAnswer: 0
+      },
+      explanation: '"Hinay-hinay lang" bedeutet "Bitte langsam" - sehr wichtig, wenn jemand zu schnell spricht!'
+    },
+    {
+      exerciseTypeId: 4, // transformation
+      title: 'Überlebenssätze übersetzen - Einkaufen',
+      instruction: 'Übersetze den Satz ins Bisaya.',
+      questionData: {
+        type: 'transformation',
+        text: 'Wie viel kostet das?',
+        sourceLanguage: 'Deutsch',
+        targetLanguage: 'Bisaya'
+      },
+      answerData: {
+        type: 'transformation',
+        correct: 'Tagpila ni?',
+        alternatives: ['Tagpila kini?', 'Pila ni?']
+      },
+      explanation: '"Tagpila ni?" bedeutet "Wie viel kostet das?" - sehr nützlich beim Einkaufen!'
+    },
+    {
+      exerciseTypeId: 4, // transformation
+      title: 'Überlebenssätze übersetzen - Kommunikation',
+      instruction: 'Übersetze den Satz ins Bisaya.',
+      questionData: {
+        type: 'transformation',
+        text: 'Ich spreche kein Bisaya',
+        sourceLanguage: 'Deutsch',
+        targetLanguage: 'Bisaya'
+      },
+      answerData: {
+        type: 'transformation',
+        correct: 'Dili ko mag-Bisaya',
+        alternatives: ['Wala ko mag-Bisaya', 'Dili ko makasabot Bisaya']
+      },
+      explanation: '"Dili ko mag-Bisaya" bedeutet "Ich spreche kein Bisaya" - nützlich, um zu erklären, dass du noch lernst.'
+    },
+    {
+      exerciseTypeId: 4, // transformation
+      title: 'Überlebenssätze übersetzen - Hilfe',
+      instruction: 'Übersetze den Satz ins Bisaya.',
+      questionData: {
+        type: 'transformation',
+        text: 'Ich bin verloren',
+        sourceLanguage: 'Deutsch',
+        targetLanguage: 'Bisaya'
+      },
+      answerData: {
+        type: 'transformation',
+        correct: 'Nawala ko',
+        alternatives: ['Nawala ako', 'Nawala na ko']
+      },
+      explanation: '"Nawala ko" bedeutet "Ich bin verloren" - wichtig, wenn du Hilfe brauchst.'
+    }
+  ]
+};
+
+async function findOrCreateSystemUser() {
+  let systemUser = await User.findOne({ 
+    where: { 
+      username: 'system' 
+    } 
+  });
+
+  if (!systemUser) {
+    systemUser = await User.findOne({ 
+      where: { 
+        username: 'admin' 
+      } 
+    });
+  }
+
+  if (!systemUser) {
+    console.error('❌ System-Benutzer nicht gefunden.');
+    throw new Error('System user not found');
+  }
+
+  return systemUser;
+}
+
+async function updateSurvivalExercises() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  const systemUser = await findOrCreateSystemUser();
+  console.log(`Verwende System-Benutzer: ${systemUser.username} (ID: ${systemUser.id})\n`);
+
+  // Finde alle Bisaya-Kurse
+  const [bisayaLanguage] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    {
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  if (!bisayaLanguage) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const courses = await sequelize.query(
+    `SELECT id, title, owner_user_id FROM community.vocab_course WHERE language_id = :languageId`,
+    {
+      replacements: { languageId: bisayaLanguage.id },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`Gefunden: ${courses.length} Bisaya-Kurse\n`);
+
+  let totalExercisesUpdated = 0;
+  let totalLessonsUpdated = 0;
+
+  for (const course of courses) {
+    console.log(`📚 Kurs: ${course.title} (ID: ${course.id})`);
+    
+    // Finde "Überlebenssätze"-Lektionen
+    const lessons = await VocabCourseLesson.findAll({
+      where: { 
+        courseId: course.id,
+        title: ['Überlebenssätze - Teil 1', 'Überlebenssätze - Teil 2']
+      },
+      order: [['lessonNumber', 'ASC']]
+    });
+
+    console.log(`   ${lessons.length} "Überlebenssätze"-Lektionen gefunden\n`);
+
+    for (const lesson of lessons) {
+      const exercises = SURVIVAL_EXERCISES[lesson.title];
+      
+      if (!exercises || exercises.length === 0) {
+        console.log(`   ⚠️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - keine Übungen definiert`);
+        continue;
+      }
+
+      // Lösche bestehende Übungen
+      const deletedCount = await VocabGrammarExercise.destroy({
+        where: { lessonId: lesson.id }
+      });
+
+      console.log(`   🗑️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${deletedCount} alte Übung(en) gelöscht`);
+
+      // Erstelle neue Übungen
+      let exerciseNumber = 1;
+      for (const exerciseData of exercises) {
+        await VocabGrammarExercise.create({
+          lessonId: lesson.id,
+          exerciseTypeId: exerciseData.exerciseTypeId,
+          exerciseNumber: exerciseNumber++,
+          title: exerciseData.title,
+          instruction: exerciseData.instruction,
+          questionData: JSON.stringify(exerciseData.questionData),
+          answerData: JSON.stringify(exerciseData.answerData),
+          explanation: exerciseData.explanation,
+          createdByUserId: course.owner_user_id || systemUser.id
+        });
+        totalExercisesUpdated++;
+      }
+
+      console.log(`   ✅ Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${exercises.length} neue Übung(en) erstellt`);
+      totalLessonsUpdated++;
+    }
+    
+    console.log('');
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${totalLessonsUpdated} Lektionen aktualisiert`);
+  console.log(`   ${totalExercisesUpdated} neue Grammatik-Übungen erstellt`);
+}
+
+updateSurvivalExercises()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/scripts/update-week1-bisaya-exercises.js

@@ -0,0 +1,129 @@
+#!/usr/bin/env node
+/**
+ * Script zum Aktualisieren der Woche-1-Lektionen in Bisaya-Kursen
+ *
+ * Verwendung:
+ * node backend/scripts/update-week1-bisaya-exercises.js
+ *
+ * - Entfernt alte Platzhalter-Übungen
+ * - Ersetzt durch korrekte Inhalte für "Woche 1 - Wiederholung" und "Woche 1 - Vokabeltest"
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+import User from '../models/community/user.js';
+
+const LESSON_TITLES = ['Woche 1 - Wiederholung', 'Woche 1 - Vokabeltest'];
+
+const BISAYA_EXERCISES = {
+  'Woche 1 - Wiederholung': [
+    { exerciseTypeId: 2, title: 'Wiederholung: Wie sagt man "Wie geht es dir?"?', instruction: 'Wähle die richtige Begrüßung aus.', questionData: { type: 'multiple_choice', question: 'Wie sagt man "Wie geht es dir?" auf Bisaya?', options: ['Kumusta ka?', 'Maayo', 'Salamat', 'Palihug'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Kumusta ka?" ist die Standard-Begrüßung auf Bisaya.' },
+    { exerciseTypeId: 2, title: 'Wiederholung: Wie sagt man "Mutter" auf Bisaya?', instruction: 'Wähle die richtige Übersetzung.', questionData: { type: 'multiple_choice', question: 'Wie sagt man "Mutter" auf Bisaya?', options: ['Nanay', 'Tatay', 'Kuya', 'Ate'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Nanay" bedeutet "Mutter" auf Bisaya.' },
+    { exerciseTypeId: 2, title: 'Wiederholung: Was bedeutet "Palangga taka"?', instruction: 'Wähle die richtige Bedeutung.', questionData: { type: 'multiple_choice', question: 'Was bedeutet "Palangga taka"?', options: ['Ich hab dich lieb', 'Danke', 'Guten Tag', 'Auf Wiedersehen'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Palangga taka" bedeutet "Ich hab dich lieb" - wärmer als "I love you" im Familienkontext.' },
+    { exerciseTypeId: 2, title: 'Wiederholung: Was fragt man mit "Nikaon ka?"?', instruction: 'Wähle die richtige Bedeutung.', questionData: { type: 'multiple_choice', question: 'Was bedeutet "Nikaon ka?"?', options: ['Hast du schon gegessen?', 'Wie geht es dir?', 'Danke', 'Bitte'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Nikaon ka?" bedeutet "Hast du schon gegessen?" - typisch fürsorglich auf den Philippinen.' },
+    { exerciseTypeId: 2, title: 'Wiederholung: Wie sagt man "Ich verstehe nicht"?', instruction: 'Wähle die richtige Übersetzung.', questionData: { type: 'multiple_choice', question: 'Wie sagt man "Ich verstehe nicht" auf Bisaya?', options: ['Wala ko kasabot', 'Salamat', 'Maayo', 'Palihug'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Wala ko kasabot" bedeutet "Ich verstehe nicht".' }
+  ],
+  'Woche 1 - Vokabeltest': [
+    { exerciseTypeId: 2, title: 'Vokabeltest: Kumusta', instruction: 'Was bedeutet "Kumusta"?', questionData: { type: 'multiple_choice', question: 'Was bedeutet "Kumusta"?', options: ['Wie geht es dir?', 'Danke', 'Bitte', 'Auf Wiedersehen'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Kumusta" kommt von spanisch "¿Cómo está?" - "Wie geht es dir?"' },
+    { exerciseTypeId: 2, title: 'Vokabeltest: Lola', instruction: 'Wähle die richtige Übersetzung.', questionData: { type: 'multiple_choice', question: 'Was bedeutet "Lola"?', options: ['Großmutter', 'Großvater', 'Mutter', 'Vater'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Lola" = Großmutter, "Lolo" = Großvater.' },
+    { exerciseTypeId: 2, title: 'Vokabeltest: Salamat', instruction: 'Wähle die richtige Bedeutung.', questionData: { type: 'multiple_choice', question: 'Was bedeutet "Salamat"?', options: ['Danke', 'Bitte', 'Entschuldigung', 'Gern geschehen'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Salamat" bedeutet "Danke".' },
+    { exerciseTypeId: 2, title: 'Vokabeltest: Lami', instruction: 'Was bedeutet "Lami"?', questionData: { type: 'multiple_choice', question: 'Was bedeutet "Lami"?', options: ['Lecker', 'Viel', 'Gut', 'Schnell'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Lami" bedeutet "lecker" oder "schmackhaft" - wichtig beim Essen!' },
+    { exerciseTypeId: 2, title: 'Vokabeltest: Mingaw ko nimo', instruction: 'Wähle die richtige Bedeutung.', questionData: { type: 'multiple_choice', question: 'Was bedeutet "Mingaw ko nimo"?', options: ['Ich vermisse dich', 'Ich freue mich', 'Ich mag dich', 'Ich liebe dich'] }, answerData: { type: 'multiple_choice', correctAnswer: 0 }, explanation: '"Mingaw ko nimo" bedeutet "Ich vermisse dich".' }
+  ]
+};
+
+async function updateWeek1BisayaExercises() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  let systemUser;
+  try {
+    systemUser = await User.findOne({ where: { username: 'system' } });
+    if (!systemUser) systemUser = await User.findOne({ where: { username: 'admin' } });
+    if (!systemUser) throw new Error('System user not found');
+  } catch (e) {
+    console.error('❌ System-Benutzer nicht gefunden.');
+    throw e;
+  }
+
+  const [bisayaLanguage] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    { type: sequelize.QueryTypes.SELECT }
+  );
+
+  if (!bisayaLanguage) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const courses = await sequelize.query(
+    `SELECT c.id, c.title, c.owner_user_id
+     FROM community.vocab_course c
+     WHERE c.language_id = :languageId`,
+    {
+      replacements: { languageId: bisayaLanguage.id },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`Gefunden: ${courses.length} Bisaya-Kurs(e)\n`);
+
+  let totalDeleted = 0;
+  let totalAdded = 0;
+
+  for (const course of courses) {
+    console.log(`📚 Kurs: ${course.title} (ID: ${course.id})`);
+
+    for (const lessonTitle of LESSON_TITLES) {
+      const exercises = BISAYA_EXERCISES[lessonTitle];
+      if (!exercises || exercises.length === 0) continue;
+
+      const lessons = await VocabCourseLesson.findAll({
+        where: { courseId: course.id, title: lessonTitle },
+        order: [['lessonNumber', 'ASC']]
+      });
+
+      for (const lesson of lessons) {
+        const deletedCount = await VocabGrammarExercise.destroy({
+          where: { lessonId: lesson.id }
+        });
+        totalDeleted += deletedCount;
+        console.log(`   🗑️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${deletedCount} alte Übung(en) entfernt`);
+
+        let exerciseNumber = 1;
+        for (const ex of exercises) {
+          await VocabGrammarExercise.create({
+            lessonId: lesson.id,
+            exerciseTypeId: ex.exerciseTypeId,
+            exerciseNumber: exerciseNumber++,
+            title: ex.title,
+            instruction: ex.instruction,
+            questionData: JSON.stringify(ex.questionData),
+            answerData: JSON.stringify(ex.answerData),
+            explanation: ex.explanation,
+            createdByUserId: course.owner_user_id || systemUser.id
+          });
+          totalAdded++;
+        }
+        console.log(`   ✅ Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${exercises.length} neue Übung(en)`);
+      }
+    }
+    console.log('');
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${totalDeleted} Platzhalter-Übungen entfernt`);
+  console.log(`   ${totalAdded} neue Übungen erstellt`);
+}
+
+updateWeek1BisayaExercises()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

backend/server.js

@@ -3,6 +3,11 @@ import './config/loadEnv.js'; // .env deterministisch laden
 import http from 'http';
 import https from 'https';
 import fs from 'fs';
+// Assoziationen sofort setzen, bevor app (und damit Services/Router) geladen werden.
+// So nutzen alle Modelle dieselbe Instanz inkl. Associations (verhindert EagerLoadingError).
+import setupAssociations from './models/associations.js';
+setupAssociations();
+
 import app from './app.js';
 import { setupWebSocket } from './utils/socket.js';
 import { syncDatabase } from './utils/syncDatabase.js';

backend/services/calendarService.js

@@ -0,0 +1,507 @@
+import CalendarEvent from '../models/community/calendar_event.js';
+import User from '../models/community/user.js';
+import Friendship from '../models/community/friendship.js';
+import UserParam from '../models/community/user_param.js';
+import UserParamType from '../models/type/user_param.js';
+import UserParamVisibility from '../models/community/user_param_visibility.js';
+import UserParamVisibilityType from '../models/type/user_param_visibility.js';
+import { Op } from 'sequelize';
+
+class CalendarService {
+    /**
+     * Get all calendar events for a user
+     * @param {string} hashedUserId - The user's hashed ID
+     * @param {object} options - Optional filters (startDate, endDate)
+     */
+    async getEvents(hashedUserId, options = {}) {
+        const user = await User.findOne({ where: { hashedId: hashedUserId } });
+        if (!user) {
+            throw new Error('User not found');
+        }
+
+        const where = { userId: user.id };
+
+        // Filter by date range if provided
+        if (options.startDate || options.endDate) {
+            where[Op.or] = [];
+            
+            if (options.startDate && options.endDate) {
+                // Events that overlap with the requested range
+                where[Op.or].push({
+                    startDate: { [Op.between]: [options.startDate, options.endDate] }
+                });
+                where[Op.or].push({
+                    endDate: { [Op.between]: [options.startDate, options.endDate] }
+                });
+                where[Op.or].push({
+                    [Op.and]: [
+                        { startDate: { [Op.lte]: options.startDate } },
+                        { endDate: { [Op.gte]: options.endDate } }
+                    ]
+                });
+            } else if (options.startDate) {
+                where[Op.or].push({ startDate: { [Op.gte]: options.startDate } });
+                where[Op.or].push({ endDate: { [Op.gte]: options.startDate } });
+            } else if (options.endDate) {
+                where[Op.or].push({ startDate: { [Op.lte]: options.endDate } });
+            }
+        }
+
+        const events = await CalendarEvent.findAll({
+            where,
+            order: [['startDate', 'ASC'], ['startTime', 'ASC']]
+        });
+
+        return events.map(e => this.formatEvent(e));
+    }
+
+    /**
+     * Get a single event by ID
+     */
+    async getEvent(hashedUserId, eventId) {
+        const user = await User.findOne({ where: { hashedId: hashedUserId } });
+        if (!user) {
+            throw new Error('User not found');
+        }
+
+        const event = await CalendarEvent.findOne({
+            where: { id: eventId, userId: user.id }
+        });
+
+        if (!event) {
+            throw new Error('Event not found');
+        }
+
+        return this.formatEvent(event);
+    }
+
+    /**
+     * Create a new calendar event
+     */
+    async createEvent(hashedUserId, eventData) {
+        const user = await User.findOne({ where: { hashedId: hashedUserId } });
+        if (!user) {
+            throw new Error('User not found');
+        }
+
+        const event = await CalendarEvent.create({
+            userId: user.id,
+            title: eventData.title,
+            description: eventData.description || null,
+            categoryId: eventData.categoryId || 'personal',
+            startDate: eventData.startDate,
+            endDate: eventData.endDate || eventData.startDate,
+            startTime: eventData.allDay ? null : eventData.startTime,
+            endTime: eventData.allDay ? null : eventData.endTime,
+            allDay: eventData.allDay || false
+        });
+
+        return this.formatEvent(event);
+    }
+
+    /**
+     * Update an existing calendar event
+     */
+    async updateEvent(hashedUserId, eventId, eventData) {
+        const user = await User.findOne({ where: { hashedId: hashedUserId } });
+        if (!user) {
+            throw new Error('User not found');
+        }
+
+        const event = await CalendarEvent.findOne({
+            where: { id: eventId, userId: user.id }
+        });
+
+        if (!event) {
+            throw new Error('Event not found');
+        }
+
+        await event.update({
+            title: eventData.title,
+            description: eventData.description || null,
+            categoryId: eventData.categoryId || 'personal',
+            startDate: eventData.startDate,
+            endDate: eventData.endDate || eventData.startDate,
+            startTime: eventData.allDay ? null : eventData.startTime,
+            endTime: eventData.allDay ? null : eventData.endTime,
+            allDay: eventData.allDay || false
+        });
+
+        return this.formatEvent(event);
+    }
+
+    /**
+     * Delete a calendar event
+     */
+    async deleteEvent(hashedUserId, eventId) {
+        const user = await User.findOne({ where: { hashedId: hashedUserId } });
+        if (!user) {
+            throw new Error('User not found');
+        }
+
+        const event = await CalendarEvent.findOne({
+            where: { id: eventId, userId: user.id }
+        });
+
+        if (!event) {
+            throw new Error('Event not found');
+        }
+
+        await event.destroy();
+        return { success: true };
+    }
+
+    /**
+     * Get friends' birthdays that are visible to the user
+     * @param {string} hashedUserId - The user's hashed ID
+     * @param {number} year - The year to get birthdays for
+     */
+    async getFriendsBirthdays(hashedUserId, year) {
+        const user = await User.findOne({ where: { hashedId: hashedUserId } });
+        if (!user) {
+            throw new Error('User not found');
+        }
+
+        // Get user's age for visibility check
+        const userAge = await this.getUserAge(user.id);
+
+        // Get all accepted friendships
+        const friendships = await Friendship.findAll({
+            where: {
+                accepted: true,
+                withdrawn: false,
+                denied: false,
+                [Op.or]: [
+                    { user1Id: user.id },
+                    { user2Id: user.id }
+                ]
+            }
+        });
+
+        const birthdays = [];
+        
+        for (const friendship of friendships) {
+            // Get the friend's user ID
+            const friendId = friendship.user1Id === user.id ? friendship.user2Id : friendship.user1Id;
+            
+            // Get the friend's birthdate param with visibility
+            const birthdateParam = await UserParam.findOne({
+                where: { userId: friendId },
+                include: [
+                    {
+                        model: UserParamType,
+                        as: 'paramType',
+                        where: { description: 'birthdate' }
+                    },
+                    {
+                        model: UserParamVisibility,
+                        as: 'param_visibilities',
+                        include: [{
+                            model: UserParamVisibilityType,
+                            as: 'visibility_type'
+                        }]
+                    }
+                ]
+            });
+
+            if (!birthdateParam || !birthdateParam.value) continue;
+
+            // Check visibility
+            const visibility = birthdateParam.param_visibilities?.[0]?.visibility_type?.description || 'Invisible';
+            if (!this.isBirthdayVisibleToFriend(visibility, userAge)) continue;
+
+            // Get friend's username
+            const friend = await User.findOne({ 
+                where: { id: friendId },
+                attributes: ['username', 'hashedId']
+            });
+
+            if (!friend) continue;
+
+            // Parse birthdate and create birthday event for the requested year
+            const birthdate = new Date(birthdateParam.value);
+            if (isNaN(birthdate.getTime())) continue;
+
+            const birthdayDate = `${year}-${String(birthdate.getMonth() + 1).padStart(2, '0')}-${String(birthdate.getDate()).padStart(2, '0')}`;
+            
+            birthdays.push({
+                id: `birthday-${friend.hashedId}-${year}`,
+                title: friend.username,
+                categoryId: 'birthday',
+                startDate: birthdayDate,
+                endDate: birthdayDate,
+                allDay: true,
+                isBirthday: true,
+                friendHashedId: friend.hashedId
+            });
+        }
+
+        return birthdays;
+    }
+
+    /**
+     * Check if birthdate is visible to a friend
+     */
+    isBirthdayVisibleToFriend(visibility, requestingUserAge) {
+        // Visible to friends if visibility is 'All', 'Friends', or 'FriendsAndAdults' (if adult)
+        return visibility === 'All' ||
+               visibility === 'Friends' ||
+               (visibility === 'FriendsAndAdults' && requestingUserAge >= 18);
+    }
+
+    /**
+     * Get user's age from birthdate
+     */
+    async getUserAge(userId) {
+        const birthdateParam = await UserParam.findOne({
+            where: { userId },
+            include: [{
+                model: UserParamType,
+                as: 'paramType',
+                where: { description: 'birthdate' }
+            }]
+        });
+
+        if (!birthdateParam || !birthdateParam.value) return 0;
+
+        const birthdate = new Date(birthdateParam.value);
+        const today = new Date();
+        let age = today.getFullYear() - birthdate.getFullYear();
+        const monthDiff = today.getMonth() - birthdate.getMonth();
+        if (monthDiff < 0 || (monthDiff === 0 && today.getDate() < birthdate.getDate())) {
+            age--;
+        }
+        return age;
+    }
+
+    /**
+     * Get upcoming birthdays for widget (sorted by next occurrence)
+     */
+    async getUpcomingBirthdays(hashedUserId, limit = 10) {
+        const user = await User.findOne({ where: { hashedId: hashedUserId } });
+        if (!user) {
+            throw new Error('User not found');
+        }
+
+        const userAge = await this.getUserAge(user.id);
+        const today = new Date();
+        const currentYear = today.getFullYear();
+
+        // Get all accepted friendships
+        const friendships = await Friendship.findAll({
+            where: {
+                accepted: true,
+                withdrawn: false,
+                denied: false,
+                [Op.or]: [
+                    { user1Id: user.id },
+                    { user2Id: user.id }
+                ]
+            }
+        });
+
+        const birthdays = [];
+
+        for (const friendship of friendships) {
+            const friendId = friendship.user1Id === user.id ? friendship.user2Id : friendship.user1Id;
+
+            const birthdateParam = await UserParam.findOne({
+                where: { userId: friendId },
+                include: [
+                    {
+                        model: UserParamType,
+                        as: 'paramType',
+                        where: { description: 'birthdate' }
+                    },
+                    {
+                        model: UserParamVisibility,
+                        as: 'param_visibilities',
+                        include: [{
+                            model: UserParamVisibilityType,
+                            as: 'visibility_type'
+                        }]
+                    }
+                ]
+            });
+
+            if (!birthdateParam || !birthdateParam.value) continue;
+
+            const visibility = birthdateParam.param_visibilities?.[0]?.visibility_type?.description || 'Invisible';
+            if (!this.isBirthdayVisibleToFriend(visibility, userAge)) continue;
+
+            const friend = await User.findOne({
+                where: { id: friendId },
+                attributes: ['username', 'hashedId']
+            });
+
+            if (!friend) continue;
+
+            const birthdate = new Date(birthdateParam.value);
+            if (isNaN(birthdate.getTime())) continue;
+
+            // Calculate next birthday
+            let nextBirthday = new Date(currentYear, birthdate.getMonth(), birthdate.getDate());
+            if (nextBirthday < today) {
+                nextBirthday = new Date(currentYear + 1, birthdate.getMonth(), birthdate.getDate());
+            }
+
+            // Calculate days until birthday
+            const diffTime = nextBirthday.getTime() - today.getTime();
+            const daysUntil = Math.ceil(diffTime / (1000 * 60 * 60 * 24));
+
+            // Calculate age they will turn
+            const turningAge = nextBirthday.getFullYear() - birthdate.getFullYear();
+
+            birthdays.push({
+                username: friend.username,
+                hashedId: friend.hashedId,
+                date: `${String(birthdate.getMonth() + 1).padStart(2, '0')}-${String(birthdate.getDate()).padStart(2, '0')}`,
+                nextDate: nextBirthday.toISOString().split('T')[0],
+                daysUntil,
+                turningAge
+            });
+        }
+
+        // Sort by days until birthday
+        birthdays.sort((a, b) => a.daysUntil - b.daysUntil);
+
+        return birthdays.slice(0, limit);
+    }
+
+    /**
+     * Get upcoming events for widget
+     */
+    async getUpcomingEvents(hashedUserId, limit = 10) {
+        const user = await User.findOne({ where: { hashedId: hashedUserId } });
+        if (!user) {
+            throw new Error('User not found');
+        }
+
+        const today = new Date();
+        const todayStr = today.toISOString().split('T')[0];
+
+        const events = await CalendarEvent.findAll({
+            where: {
+                userId: user.id,
+                [Op.or]: [
+                    { startDate: { [Op.gte]: todayStr } },
+                    { endDate: { [Op.gte]: todayStr } }
+                ]
+            },
+            order: [['startDate', 'ASC'], ['startTime', 'ASC']],
+            limit
+        });
+
+        return events.map(e => ({
+            id: e.id,
+            titel: e.title,
+            datum: e.startDate,
+            beschreibung: e.description || null,
+            categoryId: e.categoryId,
+            allDay: e.allDay,
+            startTime: e.startTime ? e.startTime.substring(0, 5) : null,
+            endDate: e.endDate
+        }));
+    }
+
+    /**
+     * Get mini calendar data for widget
+     */
+    async getMiniCalendarData(hashedUserId) {
+        const user = await User.findOne({ where: { hashedId: hashedUserId } });
+        if (!user) {
+            throw new Error('User not found');
+        }
+
+        const today = new Date();
+        const year = today.getFullYear();
+        const month = today.getMonth();
+
+        // Get first and last day of month
+        const firstDay = new Date(year, month, 1);
+        const lastDay = new Date(year, month + 1, 0);
+
+        const startStr = firstDay.toISOString().split('T')[0];
+        const endStr = lastDay.toISOString().split('T')[0];
+
+        // Get user events for this month
+        const events = await CalendarEvent.findAll({
+            where: {
+                userId: user.id,
+                [Op.or]: [
+                    { startDate: { [Op.between]: [startStr, endStr] } },
+                    { endDate: { [Op.between]: [startStr, endStr] } },
+                    {
+                        [Op.and]: [
+                            { startDate: { [Op.lte]: startStr } },
+                            { endDate: { [Op.gte]: endStr } }
+                        ]
+                    }
+                ]
+            }
+        });
+
+        // Get birthdays for this month
+        const birthdays = await this.getFriendsBirthdays(hashedUserId, year);
+        const monthBirthdays = birthdays.filter(b => {
+            const bMonth = parseInt(b.startDate.split('-')[1]);
+            return bMonth === month + 1;
+        });
+
+        // Build days with events
+        const daysWithEvents = {};
+        
+        for (const event of events) {
+            const start = new Date(event.startDate);
+            const end = event.endDate ? new Date(event.endDate) : start;
+            
+            for (let d = new Date(start); d <= end && d <= lastDay; d.setDate(d.getDate() + 1)) {
+                if (d >= firstDay) {
+                    const dayNum = d.getDate();
+                    if (!daysWithEvents[dayNum]) {
+                        daysWithEvents[dayNum] = { events: 0, birthdays: 0 };
+                    }
+                    daysWithEvents[dayNum].events++;
+                }
+            }
+        }
+
+        for (const birthday of monthBirthdays) {
+            const dayNum = parseInt(birthday.startDate.split('-')[2]);
+            if (!daysWithEvents[dayNum]) {
+                daysWithEvents[dayNum] = { events: 0, birthdays: 0 };
+            }
+            daysWithEvents[dayNum].birthdays++;
+        }
+
+        return {
+            year,
+            month: month + 1,
+            today: today.getDate(),
+            firstDayOfWeek: firstDay.getDay() === 0 ? 7 : firstDay.getDay(), // Monday = 1
+            daysInMonth: lastDay.getDate(),
+            daysWithEvents
+        };
+    }
+
+    /**
+     * Format event for API response
+     */
+    formatEvent(event) {
+        return {
+            id: event.id,
+            title: event.title,
+            description: event.description,
+            categoryId: event.categoryId,
+            startDate: event.startDate,
+            endDate: event.endDate,
+            startTime: event.startTime ? event.startTime.substring(0, 5) : null, // HH:MM format
+            endTime: event.endTime ? event.endTime.substring(0, 5) : null,
+            allDay: event.allDay,
+            createdAt: event.createdAt,
+            updatedAt: event.updatedAt
+        };
+    }
+}
+
+export default new CalendarService();

backend/services/dashboardService.js

@@ -0,0 +1,59 @@
+import BaseService from './BaseService.js';
+import UserDashboard from '../models/community/user_dashboard.js';
+import WidgetType from '../models/type/widget_type.js';
+
+class DashboardService extends BaseService {
+    /**
+     * Liste aller möglichen (verfügbaren) Widget-Typen.
+     * @returns {Promise<Array<{ id: number, label: string, endpoint: string, description: string|null, orderId: number }>>}
+     */
+    async getAvailableWidgets() {
+        const rows = await WidgetType.findAll({
+            order: [['orderId', 'ASC'], ['id', 'ASC']],
+            attributes: ['id', 'label', 'endpoint', 'description', 'orderId']
+        });
+        return rows.map(r => ({
+            id: r.id,
+            label: r.label,
+            endpoint: r.endpoint,
+            description: r.description ?? null,
+            orderId: r.orderId
+        }));
+    }
+
+    /**
+     * @param {string} hashedUserId
+     * @returns {Promise<{ widgets: Array<{ id: string, title: string, endpoint: string }> }>}
+     */
+    async getConfig(hashedUserId) {
+        const user = await this.getUserByHashedId(hashedUserId);
+        const row = await UserDashboard.findOne({ where: { userId: user.id } });
+        const config = row?.config ?? { widgets: [] };
+        if (!Array.isArray(config.widgets)) config.widgets = [];
+        return config;
+    }
+
+    /**
+     * @param {string} hashedUserId
+     * @param {{ widgets: Array<{ id: string, title: string, endpoint: string }> }} config
+     */
+    async setConfig(hashedUserId, config) {
+        const user = await this.getUserByHashedId(hashedUserId);
+        const widgets = Array.isArray(config?.widgets) ? config.widgets : [];
+        const sanitized = widgets.map(w => ({
+            id: String(w?.id ?? ''),
+            title: String(w?.title ?? ''),
+            endpoint: String(w?.endpoint ?? '')
+        })).filter(w => w.id && (w.title || w.endpoint));
+        const payload = { widgets: sanitized };
+        const existing = await UserDashboard.findOne({ where: { userId: user.id } });
+        if (existing) {
+            await existing.update({ config: payload });
+        } else {
+            await UserDashboard.create({ userId: user.id, config: payload });
+        }
+        return { widgets: sanitized };
+    }
+}
+
+export default new DashboardService();

backend/services/modelsProxyService.js

@@ -0,0 +1,125 @@
+/**
+ * Model-Proxy-Service: Lädt GLB-Dateien, komprimiert sie mit gltf-transform (Draco + Textur-Optimierung)
+ * und legt sie im Datei-Cache ab. Weitere Requests werden aus dem Cache bedient.
+ */
+
+import fs from 'fs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+import { spawn } from 'child_process';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const BACKEND_DIR = path.join(__dirname, '..');
+const PROJECT_ROOT = path.join(BACKEND_DIR, '..');
+const MODELS_REL = path.join('models', '3d', 'falukant', 'characters');
+const DIST_MODELS = path.join(PROJECT_ROOT, 'frontend', 'dist', MODELS_REL);
+const PUBLIC_MODELS = path.join(PROJECT_ROOT, 'frontend', 'public', MODELS_REL);
+const CACHE_DIR = path.join(BACKEND_DIR, 'data', 'model-cache');
+const CLI_PATH = path.join(BACKEND_DIR, 'node_modules', '.bin', 'gltf-transform');
+
+/** Einmal ermitteltes Quellverzeichnis (frontend/dist oder frontend/public). */
+let _sourceDir = null;
+
+/** Production: frontend/dist; Local: frontend/public. Einmal pro Prozess festgelegt, damit
+ * isCacheValid() stets gegen dieselbe Quelle prüft (kein Wechsel zwischen dist/public). */
+function getSourceDir() {
+  if (_sourceDir !== null) return _sourceDir;
+  _sourceDir = fs.existsSync(DIST_MODELS) ? DIST_MODELS : PUBLIC_MODELS;
+  return _sourceDir;
+}
+
+/** Erlaubte Dateinamen (nur [a-z0-9_.-]+.glb) */
+const FILENAME_RE = /^[a-z0-9_.-]+\.glb$/i;
+
+/** Laufende Optimierungen pro Dateiname → Promise<string> (Cache-Pfad) */
+const pending = new Map();
+
+/**
+ * Stellt sicher, dass der Cache-Ordner existiert.
+ */
+function ensureCacheDir() {
+  if (!fs.existsSync(CACHE_DIR)) {
+    fs.mkdirSync(CACHE_DIR, { recursive: true });
+  }
+}
+
+/**
+ * Prüft, ob die Cache-Datei gültig ist (existiert und ist nicht älter als die Quelle).
+ * @param {string} sourcePath
+ * @param {string} cachePath
+ * @returns {boolean}
+ */
+function isCacheValid(sourcePath, cachePath) {
+  if (!fs.existsSync(cachePath)) return false;
+  if (!fs.existsSync(sourcePath)) return false;
+  const sourceStat = fs.statSync(sourcePath);
+  const cacheStat = fs.statSync(cachePath);
+  return cacheStat.mtimeMs >= sourceStat.mtimeMs;
+}
+
+/**
+ * Führt gltf-transform optimize aus (Draco + texture-size 1024).
+ * @param {string} inputPath
+ * @param {string} outputPath
+ * @returns {Promise<void>}
+ */
+function runOptimize(inputPath, outputPath) {
+  return new Promise((resolve, reject) => {
+    const child = spawn(
+      'node',
+      [CLI_PATH, 'optimize', inputPath, outputPath, '--compress', 'draco', '--texture-size', '1024'],
+      { cwd: BACKEND_DIR, stdio: ['ignore', 'pipe', 'pipe'] }
+    );
+    let stderr = '';
+    child.stderr?.on('data', (d) => { stderr += d.toString(); });
+    child.on('close', (code) => {
+      if (code === 0) resolve();
+      else reject(new Error(`gltf-transform exit ${code}: ${stderr}`));
+    });
+    child.on('error', reject);
+  });
+}
+
+/**
+ * Liefert den Pfad zur optimierten (gecachten) GLB-Datei.
+ * Erstellt die optimierte Datei per gltf-transform, falls nicht (gültig) gecacht.
+ *
+ * @param {string} filename - z.B. "male_child.glb"
+ * @returns {Promise<string>} Absoluter Pfad zur optimierten Datei (Cache)
+ * @throws {Error} Bei ungültigem Dateinamen oder fehlender Quelldatei
+ */
+export async function getOptimizedModelPath(filename) {
+  if (!FILENAME_RE.test(filename)) {
+    throw new Error(`Invalid model filename: ${filename}`);
+  }
+
+  const sourceDir = getSourceDir();
+  const sourcePath = path.join(sourceDir, filename);
+  const cacheFilename = filename.replace(/\.glb$/, '_opt.glb');
+  const cachePath = path.join(CACHE_DIR, cacheFilename);
+
+  if (!fs.existsSync(sourcePath)) {
+    throw new Error(`Source model not found: ${filename} (looked in ${sourceDir})`);
+  }
+
+  ensureCacheDir();
+
+  if (isCacheValid(sourcePath, cachePath)) {
+    return cachePath;
+  }
+
+  let promise = pending.get(filename);
+  if (!promise) {
+    promise = (async () => {
+      try {
+        await runOptimize(sourcePath, cachePath);
+        return cachePath;
+      } finally {
+        pending.delete(filename);
+      }
+    })();
+    pending.set(filename, promise);
+  }
+
+  return promise;
+}

backend/services/newsService.js

@@ -0,0 +1,123 @@
+/**
+ * Proxy für newsdata.io API.
+ * Endpoint: https://newsdata.io/api/1/news?apikey=...&language=...&category=...
+ * Pagination: counter = wievieltes Widget dieser Art (0 = erste Seite, 1 = zweite, …), damit News nicht doppelt gezeigt werden.
+ */
+
+const NEWS_BASE = 'https://newsdata.io/api/1/news';
+
+// Cache für News-Ergebnisse (pro Sprache/Kategorie)
+const newsCache = new Map();
+const CACHE_TTL = 5 * 60 * 1000; // 5 Minuten Cache
+
+/**
+ * @param {object} options
+ * @param {number} options.counter - 0 = erste Seite, 1 = zweite, … (für Pagination/nextPage)
+ * @param {string} [options.language] - z. B. de, en
+ * @param {string} [options.category] - z. B. top, technology
+ * @returns {Promise<{ results: Array, nextPage: string|null }>}
+ */
+async function fetchNewsPage({ language = 'de', category = 'top', nextPageToken = null }) {
+    const apiKey = process.env.NEWSDATA_IO_API_KEY;
+    if (!apiKey || !apiKey.trim()) {
+        throw new Error('NEWSDATA_IO_API_KEY is not set in .env');
+    }
+    const params = new URLSearchParams();
+    params.set('apikey', apiKey.trim());
+    params.set('language', String(language));
+    params.set('category', String(category));
+    if (nextPageToken) params.set('page', nextPageToken);
+
+    const url = `${NEWS_BASE}?${params.toString()}`;
+    const res = await fetch(url);
+    if (!res.ok) {
+        const text = await res.text();
+        throw new Error(`newsdata.io: ${res.status} ${text.slice(0, 200)}`);
+    }
+    const data = await res.json();
+    return {
+        results: data.results ?? [],
+        nextPage: data.nextPage ?? null
+    };
+}
+
+/**
+ * Holt gecachte Artikel oder lädt sie von der API
+ */
+async function getCachedNews({ language = 'de', category = 'top', minArticles = 10 }) {
+    const cacheKey = `${language}:${category}`;
+    const cached = newsCache.get(cacheKey);
+    
+    // Cache gültig?
+    if (cached && (Date.now() - cached.timestamp) < CACHE_TTL) {
+        // Wenn wir mehr Artikel brauchen, erweitern
+        if (cached.articles.length >= minArticles) {
+            return cached.articles;
+        }
+    }
+    
+    // Neue Daten laden
+    const collected = cached?.articles || [];
+    let nextPageToken = cached?.nextPage || null;
+    
+    while (collected.length < minArticles) {
+        try {
+            const page = await fetchNewsPage({
+                language,
+                category,
+                nextPageToken: nextPageToken || undefined
+            });
+            const items = page.results ?? [];
+            
+            // Duplikate vermeiden (nach title)
+            const existingTitles = new Set(collected.map(a => a.title));
+            for (const item of items) {
+                if (!existingTitles.has(item.title)) {
+                    collected.push(item);
+                    existingTitles.add(item.title);
+                }
+            }
+            
+            nextPageToken = page.nextPage ?? null;
+            if (items.length === 0 || !nextPageToken) break;
+        } catch (error) {
+            console.error('News fetch error:', error);
+            break;
+        }
+    }
+    
+    // Cache aktualisieren
+    newsCache.set(cacheKey, {
+        articles: collected,
+        nextPage: nextPageToken,
+        timestamp: Date.now()
+    });
+    
+    return collected;
+}
+
+/**
+ * Liefert den N-ten Artikel (counter = 0, 1, 2, …) für das N-te News-Widget.
+ * Nutzt Cache, damit mehrere Widgets unterschiedliche Artikel bekommen.
+ *
+ * @param {object} options
+ * @param {number} options.counter - Index des Artikels (0 = erster, 1 = zweiter, …)
+ * @param {string} [options.language]
+ * @param {string} [options.category]
+ * @returns {Promise<{ results: Array, nextPage: string|null }>}
+ */
+async function getNews({ counter = 0, language = 'de', category = 'top' }) {
+    const neededIndex = Math.max(0, counter);
+    
+    // Mindestens so viele Artikel laden wie benötigt
+    const articles = await getCachedNews({
+        language,
+        category,
+        minArticles: neededIndex + 1
+    });
+
+    const single = articles[neededIndex] ? [articles[neededIndex]] : [];
+    return { results: single, nextPage: null };
+}
+
+export default { getNews };

backend/sql/add-native-language-to-courses.sql

@@ -0,0 +1,24 @@
+-- ============================================
+-- Füge native_language_id zu vocab_course hinzu
+-- ============================================
+-- Dieses Feld speichert die Muttersprache des Lerners
+-- z.B. "Bisaya für Deutschsprachige" -> language_id = Bisaya, native_language_id = Deutsch
+
+-- Spalte hinzufügen
+ALTER TABLE community.vocab_course 
+ADD COLUMN IF NOT EXISTS native_language_id INTEGER;
+
+-- Foreign Key Constraint hinzufügen
+ALTER TABLE community.vocab_course
+ADD CONSTRAINT vocab_course_native_language_fk
+FOREIGN KEY (native_language_id)
+REFERENCES community.vocab_language(id)
+ON DELETE SET NULL;
+
+-- Index für bessere Performance
+CREATE INDEX IF NOT EXISTS vocab_course_native_language_idx
+ON community.vocab_course(native_language_id);
+
+-- Kommentar hinzufügen
+COMMENT ON COLUMN community.vocab_course.native_language_id IS 
+'Muttersprache des Lerners (z.B. Deutsch, Englisch). NULL bedeutet "für alle Sprachen".';

backend/sql/add-speaking-exercise-types.sql

@@ -0,0 +1,16 @@
+-- ============================================
+-- Neue Übungstypen für Sprachproduktion hinzufügen
+-- ============================================
+-- Führe diese Queries direkt auf dem Server aus
+
+-- Neue Übungstypen hinzufügen
+INSERT INTO community.vocab_grammar_exercise_type (name, description) VALUES
+    ('reading_aloud', 'Laut vorlesen - Übung zur Verbesserung der Aussprache'),
+    ('speaking_from_memory', 'Aus dem Kopf sprechen - Übung zur aktiven Sprachproduktion')
+ON CONFLICT (name) DO NOTHING;
+
+-- ============================================
+-- Hinweis:
+-- - reading_aloud: Text wird angezeigt, User liest vor, Speech Recognition prüft
+-- - speaking_from_memory: Prompt wird angezeigt, User spricht frei, manuelle/automatische Bewertung
+-- ============================================

backend/sql/create-vocab-courses.sql

@@ -0,0 +1,242 @@
+-- ============================================
+-- Vocab Courses - Vollständige SQL-Installation
+-- ============================================
+-- Führe diese Queries direkt auf dem Server aus
+-- Reihenfolge beachten!
+
+-- ============================================
+-- 1. Kurs-Tabellen erstellen
+-- ============================================
+
+-- Kurs-Tabelle
+CREATE TABLE IF NOT EXISTS community.vocab_course (
+    id SERIAL PRIMARY KEY,
+    owner_user_id INTEGER NOT NULL,
+    title TEXT NOT NULL,
+    description TEXT,
+    language_id INTEGER NOT NULL,
+    difficulty_level INTEGER DEFAULT 1,
+    is_public BOOLEAN DEFAULT false,
+    share_code TEXT,
+    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+    CONSTRAINT vocab_course_owner_fk
+        FOREIGN KEY (owner_user_id)
+        REFERENCES community."user"(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_course_language_fk
+        FOREIGN KEY (language_id)
+        REFERENCES community.vocab_language(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_course_share_code_uniq UNIQUE (share_code)
+);
+
+-- Lektionen innerhalb eines Kurses
+CREATE TABLE IF NOT EXISTS community.vocab_course_lesson (
+    id SERIAL PRIMARY KEY,
+    course_id INTEGER NOT NULL,
+    chapter_id INTEGER,
+    lesson_number INTEGER NOT NULL,
+    title TEXT NOT NULL,
+    description TEXT,
+    week_number INTEGER,
+    day_number INTEGER,
+    lesson_type TEXT DEFAULT 'vocab',
+    audio_url TEXT,
+    cultural_notes TEXT,
+    target_minutes INTEGER,
+    target_score_percent INTEGER DEFAULT 80,
+    requires_review BOOLEAN DEFAULT false,
+    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+    CONSTRAINT vocab_course_lesson_course_fk
+        FOREIGN KEY (course_id)
+        REFERENCES community.vocab_course(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_course_lesson_chapter_fk
+        FOREIGN KEY (chapter_id)
+        REFERENCES community.vocab_chapter(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_course_lesson_unique UNIQUE (course_id, lesson_number)
+);
+
+-- Einschreibungen in Kurse
+CREATE TABLE IF NOT EXISTS community.vocab_course_enrollment (
+    id SERIAL PRIMARY KEY,
+    user_id INTEGER NOT NULL,
+    course_id INTEGER NOT NULL,
+    enrolled_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+    CONSTRAINT vocab_course_enrollment_user_fk
+        FOREIGN KEY (user_id)
+        REFERENCES community."user"(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_course_enrollment_course_fk
+        FOREIGN KEY (course_id)
+        REFERENCES community.vocab_course(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_course_enrollment_unique UNIQUE (user_id, course_id)
+);
+
+-- Fortschritt pro User und Lektion
+CREATE TABLE IF NOT EXISTS community.vocab_course_progress (
+    id SERIAL PRIMARY KEY,
+    user_id INTEGER NOT NULL,
+    course_id INTEGER NOT NULL,
+    lesson_id INTEGER NOT NULL,
+    completed BOOLEAN DEFAULT false,
+    score INTEGER DEFAULT 0,
+    last_accessed_at TIMESTAMP WITHOUT TIME ZONE,
+    completed_at TIMESTAMP WITHOUT TIME ZONE,
+    CONSTRAINT vocab_course_progress_user_fk
+        FOREIGN KEY (user_id)
+        REFERENCES community."user"(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_course_progress_course_fk
+        FOREIGN KEY (course_id)
+        REFERENCES community.vocab_course(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_course_progress_lesson_fk
+        FOREIGN KEY (lesson_id)
+        REFERENCES community.vocab_course_lesson(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_course_progress_unique UNIQUE (user_id, lesson_id)
+);
+
+-- ============================================
+-- 2. Grammatik-Übungstabellen erstellen
+-- ============================================
+
+-- Grammatik-Übungstypen
+CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise_type (
+    id SERIAL PRIMARY KEY,
+    name TEXT NOT NULL UNIQUE,
+    description TEXT,
+    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW()
+);
+
+-- Grammatik-Übungen
+CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise (
+    id SERIAL PRIMARY KEY,
+    lesson_id INTEGER NOT NULL,
+    exercise_type_id INTEGER NOT NULL,
+    exercise_number INTEGER NOT NULL,
+    title TEXT NOT NULL,
+    instruction TEXT,
+    question_data JSONB NOT NULL,
+    answer_data JSONB NOT NULL,
+    explanation TEXT,
+    created_by_user_id INTEGER NOT NULL,
+    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+    CONSTRAINT vocab_grammar_exercise_lesson_fk
+        FOREIGN KEY (lesson_id)
+        REFERENCES community.vocab_course_lesson(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_type_fk
+        FOREIGN KEY (exercise_type_id)
+        REFERENCES community.vocab_grammar_exercise_type(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_creator_fk
+        FOREIGN KEY (created_by_user_id)
+        REFERENCES community."user"(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_unique UNIQUE (lesson_id, exercise_number)
+);
+
+-- Fortschritt für Grammatik-Übungen
+CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise_progress (
+    id SERIAL PRIMARY KEY,
+    user_id INTEGER NOT NULL,
+    exercise_id INTEGER NOT NULL,
+    attempts INTEGER DEFAULT 0,
+    correct_attempts INTEGER DEFAULT 0,
+    last_attempt_at TIMESTAMP WITHOUT TIME ZONE,
+    completed BOOLEAN DEFAULT false,
+    completed_at TIMESTAMP WITHOUT TIME ZONE,
+    CONSTRAINT vocab_grammar_exercise_progress_user_fk
+        FOREIGN KEY (user_id)
+        REFERENCES community."user"(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_progress_exercise_fk
+        FOREIGN KEY (exercise_id)
+        REFERENCES community.vocab_grammar_exercise(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_progress_unique UNIQUE (user_id, exercise_id)
+);
+
+-- ============================================
+-- 3. Indizes erstellen
+-- ============================================
+
+-- Kurs-Indizes
+CREATE INDEX IF NOT EXISTS vocab_course_owner_idx
+    ON community.vocab_course(owner_user_id);
+CREATE INDEX IF NOT EXISTS vocab_course_language_idx
+    ON community.vocab_course(language_id);
+CREATE INDEX IF NOT EXISTS vocab_course_public_idx
+    ON community.vocab_course(is_public);
+
+-- Lektion-Indizes
+CREATE INDEX IF NOT EXISTS vocab_course_lesson_course_idx
+    ON community.vocab_course_lesson(course_id);
+CREATE INDEX IF NOT EXISTS vocab_course_lesson_chapter_idx
+    ON community.vocab_course_lesson(chapter_id);
+CREATE INDEX IF NOT EXISTS vocab_course_lesson_week_idx
+    ON community.vocab_course_lesson(course_id, week_number);
+CREATE INDEX IF NOT EXISTS vocab_course_lesson_type_idx
+    ON community.vocab_course_lesson(lesson_type);
+
+-- Einschreibungs-Indizes
+CREATE INDEX IF NOT EXISTS vocab_course_enrollment_user_idx
+    ON community.vocab_course_enrollment(user_id);
+CREATE INDEX IF NOT EXISTS vocab_course_enrollment_course_idx
+    ON community.vocab_course_enrollment(course_id);
+
+-- Fortschritts-Indizes
+CREATE INDEX IF NOT EXISTS vocab_course_progress_user_idx
+    ON community.vocab_course_progress(user_id);
+CREATE INDEX IF NOT EXISTS vocab_course_progress_course_idx
+    ON community.vocab_course_progress(course_id);
+CREATE INDEX IF NOT EXISTS vocab_course_progress_lesson_idx
+    ON community.vocab_course_progress(lesson_id);
+
+-- Grammatik-Übungs-Indizes
+CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_lesson_idx
+    ON community.vocab_grammar_exercise(lesson_id);
+CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_type_idx
+    ON community.vocab_grammar_exercise(exercise_type_id);
+CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_progress_user_idx
+    ON community.vocab_grammar_exercise_progress(user_id);
+CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_progress_exercise_idx
+    ON community.vocab_grammar_exercise_progress(exercise_id);
+
+-- ============================================
+-- 4. Standard-Daten einfügen
+-- ============================================
+
+-- Standard-Übungstypen für Grammatik
+INSERT INTO community.vocab_grammar_exercise_type (name, description) VALUES
+    ('gap_fill', 'Lückentext-Übung'),
+    ('multiple_choice', 'Multiple-Choice-Fragen'),
+    ('sentence_building', 'Satzbau-Übung'),
+    ('transformation', 'Satzumformung'),
+    ('conjugation', 'Konjugations-Übung'),
+    ('declension', 'Deklinations-Übung')
+ON CONFLICT (name) DO NOTHING;
+
+-- ============================================
+-- 5. Kommentare hinzufügen (optional)
+-- ============================================
+
+COMMENT ON COLUMN community.vocab_course_lesson.lesson_type IS 
+    'Type: vocab, grammar, conversation, culture, review';
+COMMENT ON COLUMN community.vocab_course_lesson.target_minutes IS 
+    'Zielzeit in Minuten für diese Lektion';
+COMMENT ON COLUMN community.vocab_course_lesson.target_score_percent IS 
+    'Mindestpunktzahl in Prozent zum Abschluss (z.B. 80)';
+COMMENT ON COLUMN community.vocab_course_lesson.requires_review IS 
+    'Muss diese Lektion wiederholt werden, wenn Ziel nicht erreicht?';
+
+-- ============================================
+-- Fertig!
+-- ============================================
+-- Alle Tabellen, Indizes und Standard-Daten wurden erstellt.
+-- Du kannst jetzt Kurse erstellen und verwenden.

backend/sql/update-vocab-courses-existing.sql

@@ -0,0 +1,131 @@
+-- ============================================
+-- Vocab Courses - Update für bestehende Installation
+-- ============================================
+-- Führe diese Queries aus, wenn die Tabellen bereits existieren
+-- (z.B. wenn nur die Basis-Tabellen erstellt wurden)
+
+-- ============================================
+-- 1. chapter_id optional machen
+-- ============================================
+ALTER TABLE community.vocab_course_lesson
+ALTER COLUMN chapter_id DROP NOT NULL;
+
+-- ============================================
+-- 2. Neue Spalten zu vocab_course_lesson hinzufügen
+-- ============================================
+ALTER TABLE community.vocab_course_lesson
+ADD COLUMN IF NOT EXISTS week_number INTEGER,
+ADD COLUMN IF NOT EXISTS day_number INTEGER,
+ADD COLUMN IF NOT EXISTS lesson_type TEXT DEFAULT 'vocab',
+ADD COLUMN IF NOT EXISTS audio_url TEXT,
+ADD COLUMN IF NOT EXISTS cultural_notes TEXT,
+ADD COLUMN IF NOT EXISTS target_minutes INTEGER,
+ADD COLUMN IF NOT EXISTS target_score_percent INTEGER DEFAULT 80,
+ADD COLUMN IF NOT EXISTS requires_review BOOLEAN DEFAULT false;
+
+-- ============================================
+-- 3. Neue Indizes hinzufügen
+-- ============================================
+CREATE INDEX IF NOT EXISTS vocab_course_lesson_week_idx
+    ON community.vocab_course_lesson(course_id, week_number);
+CREATE INDEX IF NOT EXISTS vocab_course_lesson_type_idx
+    ON community.vocab_course_lesson(lesson_type);
+
+-- ============================================
+-- 4. Grammatik-Übungstabellen erstellen (falls noch nicht vorhanden)
+-- ============================================
+
+-- Grammatik-Übungstypen
+CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise_type (
+    id SERIAL PRIMARY KEY,
+    name TEXT NOT NULL UNIQUE,
+    description TEXT,
+    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW()
+);
+
+-- Grammatik-Übungen
+CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise (
+    id SERIAL PRIMARY KEY,
+    lesson_id INTEGER NOT NULL,
+    exercise_type_id INTEGER NOT NULL,
+    exercise_number INTEGER NOT NULL,
+    title TEXT NOT NULL,
+    instruction TEXT,
+    question_data JSONB NOT NULL,
+    answer_data JSONB NOT NULL,
+    explanation TEXT,
+    created_by_user_id INTEGER NOT NULL,
+    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+    CONSTRAINT vocab_grammar_exercise_lesson_fk
+        FOREIGN KEY (lesson_id)
+        REFERENCES community.vocab_course_lesson(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_type_fk
+        FOREIGN KEY (exercise_type_id)
+        REFERENCES community.vocab_grammar_exercise_type(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_creator_fk
+        FOREIGN KEY (created_by_user_id)
+        REFERENCES community."user"(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_unique UNIQUE (lesson_id, exercise_number)
+);
+
+-- Fortschritt für Grammatik-Übungen
+CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise_progress (
+    id SERIAL PRIMARY KEY,
+    user_id INTEGER NOT NULL,
+    exercise_id INTEGER NOT NULL,
+    attempts INTEGER DEFAULT 0,
+    correct_attempts INTEGER DEFAULT 0,
+    last_attempt_at TIMESTAMP WITHOUT TIME ZONE,
+    completed BOOLEAN DEFAULT false,
+    completed_at TIMESTAMP WITHOUT TIME ZONE,
+    CONSTRAINT vocab_grammar_exercise_progress_user_fk
+        FOREIGN KEY (user_id)
+        REFERENCES community."user"(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_progress_exercise_fk
+        FOREIGN KEY (exercise_id)
+        REFERENCES community.vocab_grammar_exercise(id)
+        ON DELETE CASCADE,
+    CONSTRAINT vocab_grammar_exercise_progress_unique UNIQUE (user_id, exercise_id)
+);
+
+-- Indizes für Grammatik-Übungen
+CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_lesson_idx
+    ON community.vocab_grammar_exercise(lesson_id);
+CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_type_idx
+    ON community.vocab_grammar_exercise(exercise_type_id);
+CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_progress_user_idx
+    ON community.vocab_grammar_exercise_progress(user_id);
+CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_progress_exercise_idx
+    ON community.vocab_grammar_exercise_progress(exercise_id);
+
+-- ============================================
+-- 5. Standard-Daten einfügen
+-- ============================================
+INSERT INTO community.vocab_grammar_exercise_type (name, description) VALUES
+    ('gap_fill', 'Lückentext-Übung'),
+    ('multiple_choice', 'Multiple-Choice-Fragen'),
+    ('sentence_building', 'Satzbau-Übung'),
+    ('transformation', 'Satzumformung'),
+    ('conjugation', 'Konjugations-Übung'),
+    ('declension', 'Deklinations-Übung')
+ON CONFLICT (name) DO NOTHING;
+
+-- ============================================
+-- 6. Kommentare hinzufügen
+-- ============================================
+COMMENT ON COLUMN community.vocab_course_lesson.lesson_type IS 
+    'Type: vocab, grammar, conversation, culture, review';
+COMMENT ON COLUMN community.vocab_course_lesson.target_minutes IS 
+    'Zielzeit in Minuten für diese Lektion';
+COMMENT ON COLUMN community.vocab_course_lesson.target_score_percent IS 
+    'Mindestpunktzahl in Prozent zum Abschluss (z.B. 80)';
+COMMENT ON COLUMN community.vocab_course_lesson.requires_review IS 
+    'Muss diese Lektion wiederholt werden, wenn Ziel nicht erreicht?';
+
+-- ============================================
+-- Fertig!
+-- ============================================

backend/sync-tables-only.js

@@ -0,0 +1,43 @@
+#!/usr/bin/env node
+
+/**
+ * Einfaches Script zum Erstellen/Aktualisieren von Tabellen
+ * Ohne Cleanup und Initialisierung
+ */
+
+import './config/loadEnv.js';
+import { initializeDatabase, syncModelsAlways, sequelize } from './utils/sequelize.js';
+import setupAssociations from './models/associations.js';
+import models from './models/index.js';
+
+console.log('🗄️  Starte Tabellen-Synchronisation (nur Schema-Updates)...');
+
+async function main() {
+    try {
+        // 1. Datenbank-Schemas initialisieren
+        console.log('📊 Initialisiere Datenbank-Schemas...');
+        await initializeDatabase();
+        console.log('✅ Datenbank-Schemas initialisiert');
+        
+        // 2. Associations setzen
+        console.log('🔗 Setze Associations...');
+        setupAssociations();
+        console.log('✅ Associations gesetzt');
+        
+        // 3. Nur Tabellen synchronisieren (ohne Cleanup, ohne Initialisierung)
+        console.log('🔄 Synchronisiere Tabellen...');
+        await syncModelsAlways(models);
+        console.log('✅ Tabellen-Synchronisation erfolgreich abgeschlossen');
+        
+        console.log('🎉 Tabellen-Synchronisation abgeschlossen!');
+        process.exit(0);
+        
+    } catch (error) {
+        console.error('❌ Fehler bei der Tabellen-Synchronisation:', error);
+        console.error('Stack Trace:', error.stack);
+        process.exit(1);
+    }
+}
+
+// Script ausführen
+main();

backend/utils/falukant/initializeFalukantPredefines.js

@@ -282,7 +282,11 @@ async function initializeFalukantProducts() {
         { labelTr: 'ox', category: 5, productionTime: 5, sellCost: 60 },
     ];
 
-    const productsToInsert = baseProducts;
+    const productsToInsert = baseProducts.map(p => ({
+        ...p,
+        sellCostMinNeutral: Math.ceil(p.sellCost * factorMin),
+        sellCostMaxNeutral: Math.ceil(p.sellCost * factorMax),
+    }));
 
     await ProductType.bulkCreate(productsToInsert, {
         ignoreDuplicates: true,

backend/utils/falukant/initializeFalukantTypes.js

@@ -16,6 +16,8 @@ import ReputationActionType from "../../models/falukant/type/reputation_action.j
 import VehicleType from "../../models/falukant/type/vehicle.js";
 import LearnRecipient from "../../models/falukant/type/learn_recipient.js";
 import PoliticalOfficeType from "../../models/falukant/type/political_office_type.js";
+import ChurchOfficeType from "../../models/falukant/type/church_office_type.js";
+import ChurchOfficeRequirement from "../../models/falukant/predefine/church_office_requirement.js";
 import PoliticalOfficeBenefitType from "../../models/falukant/type/political_office_benefit_type.js";
 import PoliticalOfficePrerequisite from "../../models/falukant/predefine/political_office_prerequisite.js";
 import UndergroundType from "../../models/falukant/type/underground.js";
@@ -47,6 +49,8 @@ export const initializeFalukantTypes = async () => {
     await initializePoliticalOfficeBenefitTypes();
     await initializePoliticalOfficeTypes();
     await initializePoliticalOfficePrerequisites();
+    await initializeChurchOfficeTypes();
+    await initializeChurchOfficePrerequisites();
     await initializeUndergroundTypes();
     await initializeVehicleTypes();
     await initializeFalukantWeatherTypes();
@@ -1024,6 +1028,136 @@ export const initializePoliticalOfficePrerequisites = async () => {
     console.log(`[Falukant] OfficePrereq neu=${created} exist=${existing}${skipped?` skip=${skipped}`:''}`);
 };
 
+// — Church Offices —
+
+const churchOffices = [
+    { tr: "lay-preacher", seatsPerRegion: 3, regionType: "city", hierarchyLevel: 0 },
+    { tr: "village-priest", seatsPerRegion: 1, regionType: "city", hierarchyLevel: 1 },
+    { tr: "parish-priest", seatsPerRegion: 1, regionType: "city", hierarchyLevel: 2 },
+    { tr: "dean", seatsPerRegion: 1, regionType: "county", hierarchyLevel: 3 },
+    { tr: "archdeacon", seatsPerRegion: 1, regionType: "shire", hierarchyLevel: 4 },
+    { tr: "bishop", seatsPerRegion: 1, regionType: "markgravate", hierarchyLevel: 5 },
+    { tr: "archbishop", seatsPerRegion: 1, regionType: "duchy", hierarchyLevel: 6 },
+    { tr: "cardinal", seatsPerRegion: 3, regionType: "country", hierarchyLevel: 7 },
+    { tr: "pope", seatsPerRegion: 1, regionType: "country", hierarchyLevel: 8 }
+];
+
+const churchOfficePrerequisites = [
+    {
+        officeTr: "lay-preacher",
+        prerequisite: {
+            prerequisiteOfficeTypeId: null // Einstiegsposition, keine Voraussetzung
+        }
+    },
+    {
+        officeTr: "village-priest",
+        prerequisite: {
+            prerequisiteOfficeTypeId: "lay-preacher"
+        }
+    },
+    {
+        officeTr: "parish-priest",
+        prerequisite: {
+            prerequisiteOfficeTypeId: "village-priest"
+        }
+    },
+    {
+        officeTr: "dean",
+        prerequisite: {
+            prerequisiteOfficeTypeId: "parish-priest"
+        }
+    },
+    {
+        officeTr: "archdeacon",
+        prerequisite: {
+            prerequisiteOfficeTypeId: "dean"
+        }
+    },
+    {
+        officeTr: "bishop",
+        prerequisite: {
+            prerequisiteOfficeTypeId: "archdeacon"
+        }
+    },
+    {
+        officeTr: "archbishop",
+        prerequisite: {
+            prerequisiteOfficeTypeId: "bishop"
+        }
+    },
+    {
+        officeTr: "cardinal",
+        prerequisite: {
+            prerequisiteOfficeTypeId: "archbishop"
+        }
+    },
+    {
+        officeTr: "pope",
+        prerequisite: {
+            prerequisiteOfficeTypeId: "cardinal"
+        }
+    }
+];
+
+export const initializeChurchOfficeTypes = async () => {
+    for (const co of churchOffices) {
+        await ChurchOfficeType.findOrCreate({
+            where: { name: co.tr },
+            defaults: {
+                seatsPerRegion: co.seatsPerRegion,
+                regionType: co.regionType,
+                hierarchyLevel: co.hierarchyLevel
+            }
+        });
+    }
+    console.log(`[Falukant] ChurchOfficeTypes initialized`);
+};
+
+export const initializeChurchOfficePrerequisites = async () => {
+    let created = 0;
+    let existing = 0;
+    let skipped = 0;
+    for (const prereq of churchOfficePrerequisites) {
+        const office = await ChurchOfficeType.findOne({ where: { name: prereq.officeTr } });
+        if (!office) { skipped++; continue; }
+        
+        let prerequisiteOfficeTypeId = null;
+        if (prereq.prerequisite.prerequisiteOfficeTypeId) {
+            const prerequisiteOffice = await ChurchOfficeType.findOne({ 
+                where: { name: prereq.prerequisite.prerequisiteOfficeTypeId } 
+            });
+            if (prerequisiteOffice) {
+                prerequisiteOfficeTypeId = prerequisiteOffice.id;
+            }
+        }
+        
+        try {
+            const [record, wasCreated] = await ChurchOfficeRequirement.findOrCreate({
+                where: { officeTypeId: office.id },
+                defaults: { 
+                    officeTypeId: office.id, 
+                    prerequisiteOfficeTypeId: prerequisiteOfficeTypeId
+                }
+            });
+            if (wasCreated) {
+                created++;
+            } else {
+                // Aktualisiere, falls sich die Voraussetzung geändert hat
+                if (record.prerequisiteOfficeTypeId !== prerequisiteOfficeTypeId) {
+                    await record.update({ prerequisiteOfficeTypeId: prerequisiteOfficeTypeId });
+                    created++; // Zähle als Update
+                } else {
+                    existing++;
+                }
+            }
+        } catch (e) {
+            if (falukantDebug) console.error('[Falukant] ChurchOfficePrereq Fehler', { officeId: office?.id, error: e.message });
+            throw e;
+        }
+    }
+    console.log(`[Falukant] ChurchOfficePrereq neu=${created} exist=${existing}${skipped?` skip=${skipped}`:''}`);
+};
+
 export const initializeUndergroundTypes = async () => {
     for (const underground of undergroundTypes) {
         await UndergroundType.findOrCreate({

backend/utils/initializeWidgetTypes.js

@@ -0,0 +1,30 @@
+import WidgetType from '../models/type/widget_type.js';
+
+const DEFAULT_WIDGET_TYPES = [
+    { label: 'Termine', endpoint: '/api/termine', description: 'Bevorstehende Termine', orderId: 1 },
+    { label: 'Falukant', endpoint: '/api/falukant/dashboard-widget', description: 'Charakter, Geld, Nachrichten, Kinder', orderId: 2 },
+    { label: 'News', endpoint: '/api/news?language=de&category=top', description: 'Nachrichten (newsdata.io), Counter für Pagination', orderId: 3 },
+    { label: 'Geburtstage', endpoint: '/api/calendar/widget/birthdays', description: 'Nächste Geburtstage von Freunden', orderId: 4 },
+    { label: 'Nächste Termine', endpoint: '/api/calendar/widget/upcoming', description: 'Anstehende Kalendertermine', orderId: 5 },
+    { label: 'Kalender', endpoint: '/api/calendar/widget/mini', description: 'Mini-Kalenderansicht', orderId: 6 }
+];
+
+/**
+ * Stellt die Standard-Widget-Typen in type.widget_type bereit.
+ * Idempotent: vorhandene Einträge werden nicht verändert.
+ */
+const initializeWidgetTypes = async () => {
+    for (const row of DEFAULT_WIDGET_TYPES) {
+        await WidgetType.findOrCreate({
+            where: { endpoint: row.endpoint },
+            defaults: {
+                label: row.label,
+                endpoint: row.endpoint,
+                description: row.description ?? null,
+                orderId: row.orderId ?? 0
+            }
+        });
+    }
+};
+
+export default initializeWidgetTypes;

backend/utils/sequelize.js

@@ -38,6 +38,12 @@ if (!dbName || !dbUser || !dbHost) {
     throw new Error('Missing required database environment variables: DB_NAME, DB_USER, or DB_HOST');
 }
 
+const poolMax = Number.parseInt(process.env.DB_POOL_MAX || '5', 10);
+const poolMin = Number.parseInt(process.env.DB_POOL_MIN || '1', 10);
+const poolAcquire = Number.parseInt(process.env.DB_POOL_ACQUIRE || '30000', 10);
+const poolIdle = Number.parseInt(process.env.DB_POOL_IDLE || '10000', 10);
+const poolEvict = Number.parseInt(process.env.DB_POOL_EVICT || '1000', 10);
+
 const sequelize = new Sequelize(dbName, dbUser, dbPass, {
     host: dbHost,
     dialect: 'postgres',
@@ -47,8 +53,55 @@ const sequelize = new Sequelize(dbName, dbUser, dbPass, {
     },
     benchmark: SQL_BENCHMARK,
     logging: sqlLogger,
+    pool: {
+        max: poolMax,          // Maximale Anzahl von Verbindungen im Pool
+        min: poolMin,          // Minimale Anzahl von Verbindungen im Pool
+        acquire: poolAcquire,  // Maximale Zeit (ms) zum Erwerb einer Verbindung
+        idle: poolIdle,        // Maximale Zeit (ms), die eine Verbindung idle sein kann, bevor sie entfernt wird
+        evict: poolEvict,      // Intervall (ms) zum Prüfen auf idle Verbindungen
+        handleDisconnects: true // Automatisches Reconnect bei Verbindungsverlust
+    },
+    dialectOptions: {
+        connectTimeout: 30000  // Timeout für Verbindungsaufbau (30 Sekunden)
+    },
+    retry: {
+        max: 3,                // Maximale Anzahl von Wiederholungsversuchen
+        match: [
+            /ConnectionError/,
+            /SequelizeConnectionError/,
+            /SequelizeConnectionRefusedError/,
+            /SequelizeHostNotFoundError/,
+            /SequelizeHostNotReachableError/,
+            /SequelizeInvalidConnectionError/,
+            /SequelizeConnectionTimedOutError/
+        ]
+    }
 });
 
+// Helper: Query mit Timeout (muss nach sequelize Initialisierung definiert werden)
+const queryWithTimeout = async (query, timeoutMs = 10000, description = 'Query', replacements = null) => {
+    const timeoutPromise = new Promise((_, reject) => {
+        setTimeout(() => reject(new Error(`Timeout after ${timeoutMs}ms`)), timeoutMs);
+    });
+    
+    try {
+        const queryOptions = replacements 
+            ? { replacements, type: sequelize.QueryTypes.SELECT }
+            : {};
+        
+        const result = await Promise.race([
+            sequelize.query(query, queryOptions),
+            timeoutPromise
+        ]);
+        return result;
+    } catch (error) {
+        if (error.message.includes('Timeout')) {
+            throw error; // Re-throw für bessere Fehlerbehandlung
+        }
+        throw error;
+    }
+};
+
 const createSchemas = async () => {
     await sequelize.query('CREATE SCHEMA IF NOT EXISTS community');
     await sequelize.query('CREATE SCHEMA IF NOT EXISTS logs');
@@ -435,12 +488,39 @@ async function updateFalukantUserMoney(falukantUserId, moneyChange, activity, ch
     }
 }
 
+// Helper: Sync mit Timeout
+const syncModelWithTimeout = async (model, timeoutMs = 60000) => {
+    const timeoutPromise = new Promise((_, reject) => {
+        setTimeout(() => reject(new Error(`Model sync timeout after ${timeoutMs}ms`)), timeoutMs);
+    });
+    
+    try {
+        await Promise.race([
+            model.sync({ alter: true, force: false, constraints: false }),
+            timeoutPromise
+        ]);
+    } catch (error) {
+        if (error.message.includes('timeout')) {
+            console.warn(`  ⚠️  ${model.name} sync timeout nach ${timeoutMs}ms - überspringe...`);
+            return false;
+        }
+        throw error;
+    }
+    return true;
+};
+
 // Immer Schema-Updates (für Deployment)
 const syncModelsAlways = async (models) => {
     console.log('🔍 Deployment-Modus: Führe immer Schema-Updates durch...');
     
+    const modelArray = Object.values(models);
+    const totalModels = modelArray.length;
+    let currentModel = 0;
+    
     try {
-        for (const model of Object.values(models)) {
+        for (const model of modelArray) {
+            currentModel++;
+            console.log(`  🔄 Syncing model ${model.name} (${currentModel}/${totalModels})...`);
             // Temporarily remove VIRTUAL fields before sync to prevent sync errors
             const originalAttributes = model.rawAttributes;
             const virtualFields = {};
@@ -520,72 +600,137 @@ const syncModelsAlways = async (models) => {
                     const schema = model.options?.schema || 'public';
                     
                     console.log(`  🔍 Checking for foreign keys in ${schema}.${tableName}...`);
-                    const foreignKeys = await sequelize.query(`
+                    // Verwende queryWithTimeout für Foreign Key Queries
-                        SELECT tc.constraint_name
+                    let foreignKeys = [];
-                        FROM information_schema.table_constraints AS tc
+                    try {
-                        WHERE tc.constraint_type = 'FOREIGN KEY'
+                        // Verwende direkte SQL-String-Interpolation, da Parameter-Binding bei queryWithTimeout Probleme macht
-                        AND tc.table_name = :tableName
+                        const result = await queryWithTimeout(`
-                        AND tc.table_schema = :schema
+                            SELECT tc.constraint_name
-                    `, {
+                            FROM information_schema.table_constraints AS tc
-                        replacements: { tableName, schema },
+                            WHERE tc.constraint_type = 'FOREIGN KEY'
-                        type: sequelize.QueryTypes.SELECT
+                            AND tc.table_name = '${tableName.replace(/'/g, "''")}'
-                    });
+                            AND tc.table_schema = '${schema.replace(/'/g, "''")}'
+                        `, 10000, `FK check for ${model.name}`);
+                        // Result ist ein Array von Objekten
+                        foreignKeys = Array.isArray(result) ? result : [];
+                    } catch (fkCheckError) {
+                        if (fkCheckError.message && fkCheckError.message.includes('Timeout')) {
+                            console.warn(`  ⚠️  Timeout beim Prüfen der Foreign Keys für ${model.name} - überspringe FK-Check...`);
+                            foreignKeys = [];
+                        } else {
+                            // Bei anderen Fehlern auch überspringen, nicht kritisch
+                            console.warn(`  ⚠️  Fehler beim Prüfen der Foreign Keys für ${model.name}:`, fkCheckError.message?.substring(0, 100));
+                            foreignKeys = [];
+                        }
+                    }
                     
                     if (foreignKeys && foreignKeys.length > 0) {
-                        console.log(`  ⚠️  Found ${foreignKeys.length} existing foreign keys:`, foreignKeys.map(fk => fk.constraint_name).join(', '));
+                        const constraintNames = foreignKeys
-                        console.log(`  ⚠️  Removing ${foreignKeys.length} existing foreign keys from ${model.name} (schema: ${schema}) before sync`);
+                            .map(fk => fk?.constraint_name)
-                        for (const fk of foreignKeys) {
+                            .filter(name => name && name !== 'undefined' && name !== undefined);
-                            console.log(`  🗑️  Dropping constraint: ${fk.constraint_name}`);
+                        
-                            await sequelize.query(`
+                        if (constraintNames.length > 0) {
-                                ALTER TABLE "${schema}"."${tableName}" 
+                            console.log(`  ⚠️  Found ${constraintNames.length} existing foreign keys:`, constraintNames.join(', '));
-                                DROP CONSTRAINT IF EXISTS "${fk.constraint_name}" CASCADE
+                            console.log(`  ⚠️  Removing ${constraintNames.length} existing foreign keys from ${model.name} (schema: ${schema}) before sync`);
-                            `);
+                            for (const constraintName of constraintNames) {
+                                try {
+                                    console.log(`  🗑️  Dropping constraint: ${constraintName}`);
+                                    await queryWithTimeout(`
+                                        ALTER TABLE "${schema}"."${tableName}" 
+                                        DROP CONSTRAINT IF EXISTS "${constraintName.replace(/"/g, '""')}" CASCADE
+                                    `, 10000, `Drop FK ${constraintName}`);
+                                } catch (dropError) {
+                                    if (dropError.message && dropError.message.includes('Timeout')) {
+                                        console.warn(`  ⚠️  Timeout beim Entfernen von ${constraintName} - überspringe...`);
+                                    } else {
+                                        console.warn(`  ⚠️  Konnte ${constraintName} nicht entfernen:`, dropError.message?.substring(0, 100));
+                                    }
+                                }
+                            }
+                            console.log(`  ✅ Foreign key removal completed for ${model.name}`);
+                        } else {
+                            console.log(`  ⚠️  Foreign keys gefunden, aber constraint_name ist undefined - überspringe FK-Entfernung`);
                         }
-                        console.log(`  ✅ All foreign keys removed for ${model.name}`);
                     } else {
                         console.log(`  ✅ No foreign keys found for ${model.name}`);
                     }
                 } catch (fkError) {
-                    console.warn(`  ⚠️  Could not remove foreign keys for ${model.name}:`, fkError.message);
+                    // Ignoriere Timeout-Fehler - nicht kritisch
-                    console.warn(`  ⚠️  Error details:`, fkError);
+                    if (fkError.message && fkError.message.includes('Timeout')) {
+                        console.warn(`  ⚠️  Timeout beim Prüfen der Foreign Keys für ${model.name} - überspringe...`);
+                    } else {
+                        console.warn(`  ⚠️  Could not remove foreign keys for ${model.name}:`, fkError.message?.substring(0, 100));
+                    }
                 }
                 
                 console.log(`  🔄 Syncing model ${model.name} with constraints: false`);
                 try {
-                    // Versuche doppelte pg_description Einträge vor dem Sync zu bereinigen
+                    // Überspringe pg_description Cleanup komplett - benötigt Superuser-Rechte und blockiert oft
-                    // Hinweis: Benötigt Superuser-Rechte oder spezielle Berechtigungen
+                    // Diese Query ist nicht kritisch für die Funktionalität
+                    
+                    // Prüfe ob Tabelle bereits existiert - wenn ja, überspringe Sync für große Tabellen
+                    const tableName = model.tableName;
+                    const schema = model.options?.schema || 'public';
+                    let tableExists = false;
                     try {
-                        const tableName = model.tableName;
+                        const existsResult = await queryWithTimeout(`
-                        const schema = model.options?.schema || 'public';
+                            SELECT EXISTS (
-                        // Verwende direkte Parameter-Einsetzung, da DO $$ keine Parameterbindung unterstützt
+                                SELECT 1 FROM information_schema.tables 
-                        // Die Parameter sind sicher, da sie von Sequelize-Modell-Eigenschaften kommen
+                                WHERE table_schema = :schema 
-                        await sequelize.query(`
+                                AND table_name = :tableName
-                            DELETE FROM pg_catalog.pg_description d1
+                            ) as exists
-                            WHERE d1.objoid IN (
+                        `, 5000, `Table exists check for ${model.name}`, { schema, tableName });
-                                SELECT c.oid
+                        tableExists = existsResult && existsResult[0] && existsResult[0].exists;
-                                FROM pg_catalog.pg_class c
+                    } catch (checkError) {
-                                JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
+                        // Bei Fehler annehmen, dass Tabelle nicht existiert und Sync versuchen
-                                WHERE c.relname = '${tableName.replace(/'/g, "''")}'
+                        tableExists = false;
-                                AND n.nspname = '${schema.replace(/'/g, "''")}'
-                            )
-                            AND EXISTS (
-                                SELECT 1
-                                FROM pg_catalog.pg_description d2
-                                WHERE d2.objoid = d1.objoid
-                                AND d2.objsubid = d1.objsubid
-                                AND d2.ctid < d1.ctid
-                            )
-                        `);
-                    } catch (descError) {
-                        // Ignoriere Berechtigungsfehler - das ist normal, wenn der Benutzer keine Superuser-Rechte hat
-                        if (descError.message && descError.message.includes('Berechtigung')) {
-                            console.log(`  ℹ️  Cannot clean up duplicate pg_description entries (requires superuser privileges): ${model.name}`);
-                        } else {
-                            console.warn(`  ⚠️  Could not clean up duplicate pg_description entries for ${model.name}:`, descError.message);
-                        }
                     }
                     
-                    await model.sync({ alter: true, force: false, constraints: false });
+                    // Für große Tabellen (FalukantUser, FalukantCharacter) - wenn Tabelle existiert, überspringe Sync
+                    const largeTables = ['FalukantUser', 'FalukantCharacter', 'Notification', 'RegionData'];
+                    if (largeTables.includes(model.name) && tableExists) {
+                        console.log(`  ℹ️  ${model.name} Tabelle existiert bereits - überspringe Sync (zu groß für alter)`);
+                        // Restore associations before continuing
+                        if (associationKeys.length > 0) {
+                            model.associations = originalAssociations;
+                        }
+                        // Restore virtual fields
+                        for (const [key, attr] of Object.entries(virtualFields)) {
+                            model.rawAttributes[key] = attr;
+                        }
+                        continue;
+                    }
+                    
+                    // Für Tabellen mit problematischen ENUM-Änderungen - wenn Tabelle existiert, überspringe Sync
+                    // Sequelize generiert fehlerhaftes SQL bei ENUM-Änderungen mit Kommentaren
+                    const enumProblemTables = ['TaxiMapTileHouse'];
+                    if (enumProblemTables.includes(model.name) && tableExists) {
+                        console.log(`  ℹ️  ${model.name} Tabelle existiert bereits - überspringe Sync (ENUM-Änderungen problematisch)`);
+                        // Restore associations before continuing
+                        if (associationKeys.length > 0) {
+                            model.associations = originalAssociations;
+                        }
+                        // Restore virtual fields
+                        for (const [key, attr] of Object.entries(virtualFields)) {
+                            model.rawAttributes[key] = attr;
+                        }
+                        continue;
+                    }
+                    
+                    // Verwende syncModelWithTimeout für große Tabellen
+                    const syncSuccess = await syncModelWithTimeout(model, 60000);
+                    if (!syncSuccess) {
+                        console.warn(`  ⚠️  ${model.name} wurde übersprungen aufgrund von Timeout`);
+                        // Restore associations before continuing
+                        if (associationKeys.length > 0) {
+                            model.associations = originalAssociations;
+                        }
+                        // Restore virtual fields
+                        for (const [key, attr] of Object.entries(virtualFields)) {
+                            model.rawAttributes[key] = attr;
+                        }
+                        continue;
+                    }
                 } catch (syncError) {
                     // Wenn Sequelize einen "mehr als eine Zeile" Fehler hat, überspringe das Model
                     // Dies kann durch doppelte pg_description Einträge oder mehrere Tabellen mit demselben Namen verursacht werden

backend/utils/syncDatabase.js

@@ -1,6 +1,64 @@
 // syncDatabase.js
 
 import { initializeDatabase, syncModelsWithUpdates, syncModelsAlways, sequelize } from './sequelize.js';
+
+// Helper: Query mit Timeout
+const queryWithTimeout = async (query, timeoutMs = 30000, description = 'Query') => {
+    const timeoutPromise = new Promise((_, reject) => {
+        setTimeout(() => reject(new Error(`Timeout after ${timeoutMs}ms`)), timeoutMs);
+    });
+    
+    try {
+        const result = await Promise.race([
+            sequelize.query(query),
+            timeoutPromise
+        ]);
+        return result;
+    } catch (error) {
+        if (error.message.includes('Timeout')) {
+            console.warn(`⚠️  ${description} hat Timeout nach ${timeoutMs}ms - überspringe...`);
+            return [null, 0]; // Return empty result
+        }
+        throw error;
+    }
+};
+
+// Helper: Retry wrapper for transient pool/connection issues
+const runWithRetry = async (fn, { retries = 3, delayMs = 2000, description = 'operation' } = {}) => {
+    let lastError;
+    for (let attempt = 1; attempt <= retries; attempt++) {
+        try {
+            return await fn();
+        } catch (error) {
+            lastError = error;
+            const isAcquireTimeout = error?.name === 'SequelizeConnectionAcquireTimeoutError'
+                || error?.message?.includes('ConnectionAcquireTimeoutError')
+                || error?.message?.includes('Operation timeout');
+            if (!isAcquireTimeout || attempt === retries) {
+                throw error;
+            }
+            console.warn(`⚠️  ${description} fehlgeschlagen (AcquireTimeout). Retry ${attempt}/${retries} in ${delayMs}ms...`);
+            await new Promise(resolve => setTimeout(resolve, delayMs));
+        }
+    }
+    throw lastError;
+};
+
+// Helper: Prüft ob Tabelle existiert
+const tableExists = async (schema, tableName) => {
+    try {
+        const result = await sequelize.query(`
+            SELECT EXISTS (
+                SELECT FROM information_schema.tables 
+                WHERE table_schema = '${schema}' 
+                AND table_name = '${tableName}'
+            );
+        `, { type: sequelize.QueryTypes.SELECT });
+        return result[0]?.exists || false;
+    } catch (error) {
+        return false;
+    }
+};
 import initializeTypes from './initializeTypes.js';
 import initializeSettings from './initializeSettings.js';
 import initializeUserRights from './initializeUserRights.js';
@@ -14,6 +72,7 @@ import initializeChat from './initializeChat.js';
 import initializeMatch3Data from './initializeMatch3.js';
 import updateExistingMatch3Levels from './updateExistingMatch3Levels.js';
 import initializeTaxi from './initializeTaxi.js';
+import initializeWidgetTypes from './initializeWidgetTypes.js';
 
 // Normale Synchronisation (nur bei STAGE=dev Schema-Updates)
 const syncDatabase = async () => {
@@ -31,7 +90,40 @@ const syncDatabase = async () => {
         }
 
         console.log("Initializing database schemas...");
-        await initializeDatabase();  
+        await initializeDatabase();
+
+        // Dashboard: Widget-Typen-Tabelle (mögliche Widgets)
+        console.log("Ensuring widget_type table exists...");
+        try {
+            await sequelize.query(`
+                CREATE TABLE IF NOT EXISTS type.widget_type (
+                    id SERIAL PRIMARY KEY,
+                    label VARCHAR(255) NOT NULL,
+                    endpoint VARCHAR(255) NOT NULL,
+                    description VARCHAR(255),
+                    order_id INTEGER NOT NULL DEFAULT 0
+                );
+            `);
+        } catch (e) {
+            console.warn('⚠️  Konnte type.widget_type nicht anlegen:', e?.message || e);
+        }
+
+        // Dashboard: Benutzer-Konfiguration (Widgets pro User)
+        console.log("Ensuring user_dashboard table exists...");
+        try {
+            await sequelize.query(`
+                CREATE TABLE IF NOT EXISTS community.user_dashboard (
+                    user_id INTEGER NOT NULL PRIMARY KEY,
+                    config JSONB NOT NULL DEFAULT '{"widgets":[]}'::jsonb,
+                    CONSTRAINT user_dashboard_user_fk
+                        FOREIGN KEY (user_id)
+                        REFERENCES community."user"(id)
+                        ON DELETE CASCADE
+                );
+            `);
+        } catch (e) {
+            console.warn('⚠️  Konnte community.user_dashboard nicht anlegen:', e?.message || e);
+        }
 
         // Vokabeltrainer: Tabellen sicherstellen (auch ohne manuell ausgeführte Migrations)
         // Hintergrund: In Produktion sind Schema-Updates deaktiviert, und Migrations werden nicht automatisch ausgeführt.
@@ -144,12 +236,330 @@ const syncDatabase = async () => {
                     ON community.vocab_chapter_lexeme(learning_lexeme_id);
                 CREATE INDEX IF NOT EXISTS vocab_chlex_reference_idx
                     ON community.vocab_chapter_lexeme(reference_lexeme_id);
+
+                // Kurs-Tabellen
+                CREATE TABLE IF NOT EXISTS community.vocab_course (
+                    id SERIAL PRIMARY KEY,
+                    owner_user_id INTEGER NOT NULL,
+                    title TEXT NOT NULL,
+                    description TEXT,
+                    language_id INTEGER NOT NULL,
+                    native_language_id INTEGER,
+                    difficulty_level INTEGER DEFAULT 1,
+                    is_public BOOLEAN DEFAULT false,
+                    share_code TEXT,
+                    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+                    updated_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+                    CONSTRAINT vocab_course_owner_fk
+                        FOREIGN KEY (owner_user_id)
+                        REFERENCES community."user"(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_course_language_fk
+                        FOREIGN KEY (language_id)
+                        REFERENCES community.vocab_language(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_course_native_language_fk
+                        FOREIGN KEY (native_language_id)
+                        REFERENCES community.vocab_language(id)
+                        ON DELETE SET NULL,
+                    CONSTRAINT vocab_course_share_code_uniq UNIQUE (share_code)
+                );
+
+                CREATE TABLE IF NOT EXISTS community.vocab_course_lesson (
+                    id SERIAL PRIMARY KEY,
+                    course_id INTEGER NOT NULL,
+                    chapter_id INTEGER,
+                    lesson_number INTEGER NOT NULL,
+                    title TEXT NOT NULL,
+                    description TEXT,
+                    week_number INTEGER,
+                    day_number INTEGER,
+                    lesson_type TEXT DEFAULT 'vocab',
+                    audio_url TEXT,
+                    cultural_notes TEXT,
+                    target_minutes INTEGER,
+                    target_score_percent INTEGER DEFAULT 80,
+                    requires_review BOOLEAN DEFAULT false,
+                    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+                    CONSTRAINT vocab_course_lesson_course_fk
+                        FOREIGN KEY (course_id)
+                        REFERENCES community.vocab_course(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_course_lesson_chapter_fk
+                        FOREIGN KEY (chapter_id)
+                        REFERENCES community.vocab_chapter(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_course_lesson_unique UNIQUE (course_id, lesson_number)
+                );
+
+                CREATE TABLE IF NOT EXISTS community.vocab_course_enrollment (
+                    id SERIAL PRIMARY KEY,
+                    user_id INTEGER NOT NULL,
+                    course_id INTEGER NOT NULL,
+                    enrolled_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+                    CONSTRAINT vocab_course_enrollment_user_fk
+                        FOREIGN KEY (user_id)
+                        REFERENCES community."user"(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_course_enrollment_course_fk
+                        FOREIGN KEY (course_id)
+                        REFERENCES community.vocab_course(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_course_enrollment_unique UNIQUE (user_id, course_id)
+                );
+
+                CREATE TABLE IF NOT EXISTS community.vocab_course_progress (
+                    id SERIAL PRIMARY KEY,
+                    user_id INTEGER NOT NULL,
+                    course_id INTEGER NOT NULL,
+                    lesson_id INTEGER NOT NULL,
+                    completed BOOLEAN DEFAULT false,
+                    score INTEGER DEFAULT 0,
+                    last_accessed_at TIMESTAMP WITHOUT TIME ZONE,
+                    completed_at TIMESTAMP WITHOUT TIME ZONE,
+                    CONSTRAINT vocab_course_progress_user_fk
+                        FOREIGN KEY (user_id)
+                        REFERENCES community."user"(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_course_progress_course_fk
+                        FOREIGN KEY (course_id)
+                        REFERENCES community.vocab_course(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_course_progress_lesson_fk
+                        FOREIGN KEY (lesson_id)
+                        REFERENCES community.vocab_course_lesson(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_course_progress_unique UNIQUE (user_id, lesson_id)
+                );
+
+                CREATE INDEX IF NOT EXISTS vocab_course_owner_idx
+                    ON community.vocab_course(owner_user_id);
+                CREATE INDEX IF NOT EXISTS vocab_course_language_idx
+                    ON community.vocab_course(language_id);
+                CREATE INDEX IF NOT EXISTS vocab_course_native_language_idx
+                    ON community.vocab_course(native_language_id);
+                CREATE INDEX IF NOT EXISTS vocab_course_public_idx
+                    ON community.vocab_course(is_public);
+                CREATE INDEX IF NOT EXISTS vocab_course_lesson_course_idx
+                    ON community.vocab_course_lesson(course_id);
+                CREATE INDEX IF NOT EXISTS vocab_course_lesson_chapter_idx
+                    ON community.vocab_course_lesson(chapter_id);
+                CREATE INDEX IF NOT EXISTS vocab_course_lesson_week_idx
+                    ON community.vocab_course_lesson(course_id, week_number);
+                CREATE INDEX IF NOT EXISTS vocab_course_lesson_type_idx
+                    ON community.vocab_course_lesson(lesson_type);
+                CREATE INDEX IF NOT EXISTS vocab_course_enrollment_user_idx
+                    ON community.vocab_course_enrollment(user_id);
+                CREATE INDEX IF NOT EXISTS vocab_course_enrollment_course_idx
+                    ON community.vocab_course_enrollment(course_id);
+                CREATE INDEX IF NOT EXISTS vocab_course_progress_user_idx
+                    ON community.vocab_course_progress(user_id);
+                CREATE INDEX IF NOT EXISTS vocab_course_progress_course_idx
+                    ON community.vocab_course_progress(course_id);
+                CREATE INDEX IF NOT EXISTS vocab_course_progress_lesson_idx
+                    ON community.vocab_course_progress(lesson_id);
+
+                // Grammatik-Übungstypen
+                CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise_type (
+                    id SERIAL PRIMARY KEY,
+                    name TEXT NOT NULL UNIQUE,
+                    description TEXT,
+                    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW()
+                );
+
+                // Grammatik-Übungen
+                CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise (
+                    id SERIAL PRIMARY KEY,
+                    lesson_id INTEGER NOT NULL,
+                    exercise_type_id INTEGER NOT NULL,
+                    exercise_number INTEGER NOT NULL,
+                    title TEXT NOT NULL,
+                    instruction TEXT,
+                    question_data JSONB NOT NULL,
+                    answer_data JSONB NOT NULL,
+                    explanation TEXT,
+                    created_by_user_id INTEGER NOT NULL,
+                    created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
+                    CONSTRAINT vocab_grammar_exercise_lesson_fk
+                        FOREIGN KEY (lesson_id)
+                        REFERENCES community.vocab_course_lesson(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_grammar_exercise_type_fk
+                        FOREIGN KEY (exercise_type_id)
+                        REFERENCES community.vocab_grammar_exercise_type(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_grammar_exercise_creator_fk
+                        FOREIGN KEY (created_by_user_id)
+                        REFERENCES community."user"(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_grammar_exercise_unique UNIQUE (lesson_id, exercise_number)
+                );
+
+                // Fortschritt für Grammatik-Übungen
+                CREATE TABLE IF NOT EXISTS community.vocab_grammar_exercise_progress (
+                    id SERIAL PRIMARY KEY,
+                    user_id INTEGER NOT NULL,
+                    exercise_id INTEGER NOT NULL,
+                    attempts INTEGER DEFAULT 0,
+                    correct_attempts INTEGER DEFAULT 0,
+                    last_attempt_at TIMESTAMP WITHOUT TIME ZONE,
+                    completed BOOLEAN DEFAULT false,
+                    completed_at TIMESTAMP WITHOUT TIME ZONE,
+                    CONSTRAINT vocab_grammar_exercise_progress_user_fk
+                        FOREIGN KEY (user_id)
+                        REFERENCES community."user"(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_grammar_exercise_progress_exercise_fk
+                        FOREIGN KEY (exercise_id)
+                        REFERENCES community.vocab_grammar_exercise(id)
+                        ON DELETE CASCADE,
+                    CONSTRAINT vocab_grammar_exercise_progress_unique UNIQUE (user_id, exercise_id)
+                );
+
+                CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_lesson_idx
+                    ON community.vocab_grammar_exercise(lesson_id);
+                CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_type_idx
+                    ON community.vocab_grammar_exercise(exercise_type_id);
+                CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_progress_user_idx
+                    ON community.vocab_grammar_exercise_progress(user_id);
+                CREATE INDEX IF NOT EXISTS vocab_grammar_exercise_progress_exercise_idx
+                    ON community.vocab_grammar_exercise_progress(exercise_id);
+
+                -- Standard-Übungstypen einfügen
+                INSERT INTO community.vocab_grammar_exercise_type (name, description) VALUES
+                    ('gap_fill', 'Lückentext-Übung'),
+                    ('multiple_choice', 'Multiple-Choice-Fragen'),
+                    ('sentence_building', 'Satzbau-Übung'),
+                    ('transformation', 'Satzumformung'),
+                    ('conjugation', 'Konjugations-Übung'),
+                    ('declension', 'Deklinations-Übung')
+                ON CONFLICT (name) DO NOTHING;
             `);
             console.log("✅ Vocab-Trainer Tabellen sind vorhanden.");
+            console.log("✅ Vocab-Course Tabellen sind vorhanden.");
+            console.log("✅ Vocab-Grammar-Exercise Tabellen sind vorhanden.");
         } catch (e) {
             console.warn('⚠️  Konnte Vocab-Trainer Tabellen nicht sicherstellen:', e?.message || e);
         }
 
+        // Migration: ChurchApplication supervisor_id nullable machen (kritisch für Funktionalität)
+        console.log("Making church_application supervisor_id nullable...");
+        try {
+            await sequelize.query(`
+                DO $$
+                BEGIN
+                    -- Prüfe ob supervisor_id NOT NULL Constraint existiert
+                    IF EXISTS (
+                        SELECT 1 FROM information_schema.columns
+                        WHERE table_schema = 'falukant_data' 
+                        AND table_name = 'church_application' 
+                        AND column_name = 'supervisor_id'
+                        AND is_nullable = 'NO'
+                    ) THEN
+                        ALTER TABLE falukant_data.church_application 
+                        ALTER COLUMN supervisor_id DROP NOT NULL;
+                        RAISE NOTICE 'supervisor_id NOT NULL Constraint entfernt';
+                    END IF;
+                END
+                $$;
+            `);
+            console.log("✅ church_application supervisor_id ist jetzt nullable");
+        } catch (e) {
+            console.warn('⚠️  Konnte church_application supervisor_id nicht nullable machen:', e?.message || e);
+        }
+
+        // Relationship-/Marriage-Proposal-Änderungen loggen (keine Einträge löschen; ohne db:migrate)
+        console.log("Ensuring relationship change log (falukant) exists...");
+        try {
+            await sequelize.query(`
+                CREATE TABLE IF NOT EXISTS falukant_log.relationship_change_log (
+                    id serial PRIMARY KEY,
+                    changed_at timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                    table_name character varying(64) NOT NULL,
+                    operation character varying(16) NOT NULL,
+                    record_id integer,
+                    payload_old jsonb,
+                    payload_new jsonb
+                );
+            `);
+            await sequelize.query(`
+                CREATE INDEX IF NOT EXISTS relationship_change_log_changed_at_idx
+                ON falukant_log.relationship_change_log (changed_at);
+            `);
+            await sequelize.query(`
+                CREATE INDEX IF NOT EXISTS relationship_change_log_table_operation_idx
+                ON falukant_log.relationship_change_log (table_name, operation);
+            `);
+            await sequelize.query(`
+                CREATE OR REPLACE FUNCTION falukant_log.log_relationship_change()
+                RETURNS TRIGGER AS $$
+                DECLARE
+                    v_record_id INTEGER;
+                    v_payload_old JSONB;
+                    v_payload_new JSONB;
+                BEGIN
+                    IF TG_OP = 'INSERT' THEN
+                        v_record_id := NEW.id;
+                        v_payload_old := NULL;
+                        v_payload_new := to_jsonb(NEW);
+                    ELSIF TG_OP = 'UPDATE' THEN
+                        v_record_id := NEW.id;
+                        v_payload_old := to_jsonb(OLD);
+                        v_payload_new := to_jsonb(NEW);
+                    ELSIF TG_OP = 'DELETE' THEN
+                        v_record_id := OLD.id;
+                        v_payload_old := to_jsonb(OLD);
+                        v_payload_new := NULL;
+                    END IF;
+                    INSERT INTO falukant_log.relationship_change_log (
+                        table_name, operation, record_id, payload_old, payload_new
+                    ) VALUES (
+                        TG_TABLE_NAME, TG_OP, v_record_id, v_payload_old, v_payload_new
+                    );
+                    IF TG_OP = 'DELETE' THEN RETURN OLD; ELSE RETURN NEW; END IF;
+                END;
+                $$ LANGUAGE plpgsql;
+            `);
+            await sequelize.query(`
+                DROP TRIGGER IF EXISTS trg_log_relationship_change ON falukant_data.relationship;
+                CREATE TRIGGER trg_log_relationship_change
+                AFTER INSERT OR UPDATE OR DELETE ON falukant_data.relationship
+                FOR EACH ROW
+                EXECUTE FUNCTION falukant_log.log_relationship_change();
+            `);
+            await sequelize.query(`
+                DROP TRIGGER IF EXISTS trg_log_relationship_change ON falukant_data.marriage_proposals;
+                CREATE TRIGGER trg_log_relationship_change
+                AFTER INSERT OR UPDATE OR DELETE ON falukant_data.marriage_proposals
+                FOR EACH ROW
+                EXECUTE FUNCTION falukant_log.log_relationship_change();
+            `);
+            console.log("✅ relationship_change_log und Trigger sind vorhanden.");
+        } catch (e) {
+            console.warn('⚠️  relationship_change_log/Trigger konnten nicht sichergestellt werden:', e?.message || e);
+        }
+
+        // Preishistorie für Produkte (Zeitreihe) – nur Schema/Struktur, noch ohne Logik
+        console.log("Ensuring falukant_log.product_price_history exists...");
+        try {
+            await sequelize.query(`
+                CREATE TABLE IF NOT EXISTS falukant_log.product_price_history (
+                    id serial PRIMARY KEY,
+                    product_id integer NOT NULL,
+                    region_id integer NOT NULL,
+                    price numeric(12,2) NOT NULL,
+                    recorded_at timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP
+                );
+            `);
+            await sequelize.query(`
+                CREATE INDEX IF NOT EXISTS product_price_history_product_region_recorded_idx
+                ON falukant_log.product_price_history (product_id, region_id, recorded_at);
+            `);
+            console.log("✅ product_price_history ist vorhanden.");
+        } catch (e) {
+            console.warn('⚠️  product_price_history konnte nicht sichergestellt werden:', e?.message || e);
+        }
+
         // Vorab: Stelle kritische Spalten sicher, damit Index-Erstellung nicht fehlschlägt
         console.log("Pre-ensure Taxi columns (traffic_light) ...");
         try {
@@ -277,14 +687,17 @@ const syncDatabase = async () => {
             }
         }
 
-        console.log("Setting up associations...");
+        // Associations werden vom Aufrufer (z. B. server.js) vor dem Aufruf von syncDatabase() gesetzt.
-        setupAssociations();
+        // Kein setupAssociations() hier, sonst doppelter Aufruf → AssociationError (alias "rooms" etc.).
 
         console.log("Synchronizing models...");
         await syncModelsWithUpdates(models);
 
         console.log("Initializing settings...");
-        await initializeSettings();
+        await runWithRetry(
+            () => initializeSettings(),
+            { retries: 3, delayMs: 2000, description: 'initializeSettings' }
+        );
 
         console.log("Initializing types...");
         await initializeTypes();   
@@ -318,6 +731,9 @@ const syncDatabase = async () => {
         console.log("Initializing Taxi...");
         await initializeTaxi();
 
+        console.log("Initializing widget types...");
+        await initializeWidgetTypes();
+
         console.log('Database synchronization complete.');
     } catch (error) {
         console.error('Unable to synchronize the database:', error);
@@ -399,89 +815,122 @@ const syncDatabaseForDeployment = async () => {
             console.warn('⚠️  Konnte Transport-Spalten nicht nullable machen:', e?.message || e);
         }
 
+        // Migration: ChurchApplication supervisor_id nullable machen
+        console.log("Making church_application supervisor_id nullable...");
+        try {
+            await sequelize.query(`
+                DO $$
+                BEGIN
+                    -- Prüfe ob supervisor_id NOT NULL Constraint existiert
+                    IF EXISTS (
+                        SELECT 1 FROM information_schema.columns
+                        WHERE table_schema = 'falukant_data' 
+                        AND table_name = 'church_application' 
+                        AND column_name = 'supervisor_id'
+                        AND is_nullable = 'NO'
+                    ) THEN
+                        ALTER TABLE falukant_data.church_application 
+                        ALTER COLUMN supervisor_id DROP NOT NULL;
+                        RAISE NOTICE 'supervisor_id NOT NULL Constraint entfernt';
+                    END IF;
+                END
+                $$;
+            `);
+            console.log("✅ church_application supervisor_id ist jetzt nullable");
+        } catch (e) {
+            console.warn('⚠️  Konnte church_application supervisor_id nicht nullable machen:', e?.message || e);
+        }
+
         // Cleanup: Entferne verwaiste Einträge vor Schema-Updates
         console.log("Cleaning up orphaned entries...");
         try {
-            // Cleanup user_param_visibility
+            // Cleanup user_param_visibility (optimiert mit LEFT JOIN)
-            const result1 = await sequelize.query(`
+            console.log("  → Prüfe user_param_visibility...");
+            const result1 = await queryWithTimeout(`
                 DELETE FROM community.user_param_visibility
                 WHERE param_id NOT IN (
                     SELECT id FROM community.user_param
                 );
-            `);
+            `, 30000, 'user_param_visibility cleanup');
             const deletedCount1 = result1[1] || 0;
             if (deletedCount1 > 0) {
                 console.log(`✅ ${deletedCount1} verwaiste user_param_visibility Einträge entfernt`);
             }
 
             // Cleanup stock mit ungültigen branch_id (0 oder nicht existierend)
-            const result2 = await sequelize.query(`
+            console.log("  → Prüfe stock...");
+            const result2 = await queryWithTimeout(`
                 DELETE FROM falukant_data.stock
                 WHERE branch_id = 0 OR branch_id NOT IN (
                     SELECT id FROM falukant_data.branch
                 );
-            `);
+            `, 30000, 'stock cleanup');
             const deletedCount2 = result2[1] || 0;
             if (deletedCount2 > 0) {
                 console.log(`✅ ${deletedCount2} verwaiste stock Einträge entfernt`);
             }
 
             // Cleanup knowledge mit ungültigen character_id oder product_id
-            const result3 = await sequelize.query(`
+            console.log("  → Prüfe knowledge...");
+            const result3 = await queryWithTimeout(`
                 DELETE FROM falukant_data.knowledge
                 WHERE character_id NOT IN (
                     SELECT id FROM falukant_data.character
                 ) OR product_id NOT IN (
                     SELECT id FROM falukant_type.product
                 );
-            `);
+            `, 30000, 'knowledge cleanup');
             const deletedCount3 = result3[1] || 0;
             if (deletedCount3 > 0) {
                 console.log(`✅ ${deletedCount3} verwaiste knowledge Einträge entfernt`);
             }
 
             // Cleanup notification mit ungültigen user_id
-            const result4 = await sequelize.query(`
+            console.log("  → Prüfe notification...");
+            const result4 = await queryWithTimeout(`
                 DELETE FROM falukant_log.notification
                 WHERE user_id NOT IN (
                     SELECT id FROM falukant_data.falukant_user
                 );
-            `);
+            `, 30000, 'notification cleanup');
             const deletedCount4 = result4[1] || 0;
             if (deletedCount4 > 0) {
                 console.log(`✅ ${deletedCount4} verwaiste notification Einträge entfernt`);
             }
 
             // Cleanup promotional_gift mit ungültigen sender_character_id oder recipient_character_id
-            const result5 = await sequelize.query(`
+            console.log("  → Prüfe promotional_gift...");
+            const result5 = await queryWithTimeout(`
                 DELETE FROM falukant_log.promotional_gift
                 WHERE sender_character_id NOT IN (
                     SELECT id FROM falukant_data.character
                 ) OR recipient_character_id NOT IN (
                     SELECT id FROM falukant_data.character
                 );
-            `);
+            `, 30000, 'promotional_gift cleanup');
             const deletedCount5 = result5[1] || 0;
             if (deletedCount5 > 0) {
                 console.log(`✅ ${deletedCount5} verwaiste promotional_gift Einträge entfernt`);
             }
 
             // Cleanup user_house mit ungültigen house_type_id oder user_id
-            const result6 = await sequelize.query(`
+            console.log("  → Prüfe user_house...");
+            const result6 = await queryWithTimeout(`
                 DELETE FROM falukant_data.user_house
                 WHERE house_type_id NOT IN (
                     SELECT id FROM falukant_type.house
                 ) OR user_id NOT IN (
                     SELECT id FROM falukant_data.falukant_user
                 );
-            `);
+            `, 30000, 'user_house cleanup');
             const deletedCount6 = result6[1] || 0;
             if (deletedCount6 > 0) {
                 console.log(`✅ ${deletedCount6} verwaiste user_house Einträge entfernt`);
             }
 
             // Cleanup child_relation mit ungültigen father_character_id, mother_character_id oder child_character_id
-            const result7 = await sequelize.query(`
+            console.log("  → Prüfe child_relation...");
+            const result7 = await queryWithTimeout(`
                 DELETE FROM falukant_data.child_relation
                 WHERE father_character_id NOT IN (
                     SELECT id FROM falukant_data.character
@@ -490,14 +939,15 @@ const syncDatabaseForDeployment = async () => {
                 ) OR child_character_id NOT IN (
                     SELECT id FROM falukant_data.character
                 );
-            `);
+            `, 30000, 'child_relation cleanup');
             const deletedCount7 = result7[1] || 0;
             if (deletedCount7 > 0) {
                 console.log(`✅ ${deletedCount7} verwaiste child_relation Einträge entfernt`);
             }
 
             // Cleanup political_office mit ungültigen character_id, office_type_id oder region_id
-            const result8 = await sequelize.query(`
+            console.log("  → Prüfe political_office...");
+            const result8 = await queryWithTimeout(`
                 DELETE FROM falukant_data.political_office
                 WHERE character_id NOT IN (
                     SELECT id FROM falukant_data.character
@@ -506,33 +956,74 @@ const syncDatabaseForDeployment = async () => {
                 ) OR region_id NOT IN (
                     SELECT id FROM falukant_data.region
                 );
-            `);
+            `, 30000, 'political_office cleanup');
             const deletedCount8 = result8[1] || 0;
             if (deletedCount8 > 0) {
                 console.log(`✅ ${deletedCount8} verwaiste political_office Einträge entfernt`);
             }
+            
+            // Cleanup church_office mit ungültigen character_id, office_type_id oder region_id (nur wenn Tabelle existiert)
+            if (await tableExists('falukant_data', 'church_office')) {
+                console.log("  → Prüfe church_office...");
+                const result11 = await queryWithTimeout(`
+                    DELETE FROM falukant_data.church_office
+                    WHERE character_id NOT IN (
+                        SELECT id FROM falukant_data.character
+                    ) OR office_type_id NOT IN (
+                        SELECT id FROM falukant_type.church_office_type
+                    ) OR region_id NOT IN (
+                        SELECT id FROM falukant_data.region
+                    );
+                `, 30000, 'church_office cleanup');
+                const deletedCount11 = result11[1] || 0;
+                if (deletedCount11 > 0) {
+                    console.log(`✅ ${deletedCount11} verwaiste church_office Einträge entfernt`);
+                }
+            }
+            
+            // Cleanup church_application mit ungültigen character_id, office_type_id, region_id oder supervisor_id (nur wenn Tabelle existiert)
+            if (await tableExists('falukant_data', 'church_application')) {
+                console.log("  → Prüfe church_application...");
+                const result12 = await queryWithTimeout(`
+                    DELETE FROM falukant_data.church_application
+                    WHERE character_id NOT IN (
+                        SELECT id FROM falukant_data.character
+                    ) OR office_type_id NOT IN (
+                        SELECT id FROM falukant_type.church_office_type
+                    ) OR region_id NOT IN (
+                        SELECT id FROM falukant_data.region
+                    ) OR (supervisor_id IS NOT NULL AND supervisor_id NOT IN (
+                        SELECT id FROM falukant_data.character
+                    ));
+                `, 30000, 'church_application cleanup');
+                const deletedCount12 = result12[1] || 0;
+                if (deletedCount12 > 0) {
+                    console.log(`✅ ${deletedCount12} verwaiste church_application Einträge entfernt`);
+                }
+            }
 
             // Cleanup vehicle.condition: Legacy-Nulls + Range clamp (UI zeigt sonst "Unbekannt")
-            const result9 = await sequelize.query(`
+            console.log("  → Prüfe vehicle.condition...");
+            const result9 = await queryWithTimeout(`
                 UPDATE falukant_data.vehicle
                 SET condition = 100
                 WHERE condition IS NULL;
-            `);
+            `, 30000, 'vehicle condition NULL update');
             const updatedNullConditions = result9[1] || 0;
             if (updatedNullConditions > 0) {
                 console.log(`✅ ${updatedNullConditions} vehicle.condition NULL → 100 gesetzt`);
             }
-            const result10 = await sequelize.query(`
+            const result10 = await queryWithTimeout(`
                 UPDATE falukant_data.vehicle
                 SET condition = GREATEST(0, LEAST(100, condition))
                 WHERE condition < 0 OR condition > 100;
-            `);
+            `, 30000, 'vehicle condition clamp');
             const clampedConditions = result10[1] || 0;
             if (clampedConditions > 0) {
                 console.log(`✅ ${clampedConditions} vehicle.condition Werte auf 0..100 geklemmt`);
             }
 
-            if (deletedCount1 === 0 && deletedCount2 === 0 && deletedCount3 === 0 && deletedCount4 === 0 && deletedCount5 === 0 && deletedCount6 === 0 && deletedCount7 === 0 && deletedCount8 === 0 && updatedNullConditions === 0 && clampedConditions === 0) {
+            if (deletedCount1 === 0 && deletedCount2 === 0 && deletedCount3 === 0 && deletedCount4 === 0 && deletedCount5 === 0 && deletedCount6 === 0 && deletedCount7 === 0 && deletedCount8 === 0 && deletedCount11 === 0 && deletedCount12 === 0 && updatedNullConditions === 0 && clampedConditions === 0) {
                 console.log("✅ Keine verwaisten Einträge gefunden");
             }
         } catch (e) {
@@ -580,6 +1071,9 @@ const syncDatabaseForDeployment = async () => {
         console.log("Initializing Taxi...");
         await initializeTaxi();
 
+        console.log("Initializing widget types...");
+        await initializeWidgetTypes();
+
         console.log('Database synchronization for deployment complete.');
     } catch (error) {
         console.error('Unable to synchronize the database for deployment:', error);

backend/vacuum-database.js

@@ -0,0 +1,113 @@
+#!/usr/bin/env node
+
+/**
+ * Script zum Ausführen von VACUUM auf Tabellen mit hohem Bloat
+ * 
+ * Führt VACUUM ANALYZE auf Tabellen aus, die:
+ * - Hohen Bloat-Anteil haben (> 20% tote Zeilen)
+ * - Seit mehr als 7 Tagen nicht gevacuumt wurden
+ * - Viele tote Zeilen haben (> 1000)
+ */
+
+import './config/loadEnv.js';
+import { sequelize } from './utils/sequelize.js';
+
+async function main() {
+    try {
+        console.log('🧹 Datenbank-Vacuum\n');
+        console.log('='.repeat(60) + '\n');
+
+        // Finde Tabellen, die Vacuum benötigen
+        const [tablesToVacuum] = await sequelize.query(`
+            SELECT 
+                schemaname || '.' || relname as table_name,
+                n_dead_tup,
+                n_live_tup,
+                CASE 
+                    WHEN n_live_tup > 0 THEN round((n_dead_tup::numeric / n_live_tup::numeric) * 100, 2)
+                    ELSE 0
+                END as dead_percent,
+                last_vacuum,
+                last_autovacuum,
+                pg_size_pretty(pg_total_relation_size(schemaname||'.'||relname)) as table_size
+            FROM pg_stat_user_tables
+            WHERE schemaname IN ('falukant_data', 'falukant_type', 'community', 'logs')
+            AND (
+                (n_dead_tup > 1000 AND (n_live_tup = 0 OR (n_dead_tup::numeric / NULLIF(n_live_tup, 0)) > 0.2))
+                OR (last_vacuum IS NULL AND last_autovacuum IS NULL AND n_dead_tup > 0)
+                OR (
+                    (last_vacuum < now() - interval '7 days' OR last_vacuum IS NULL)
+                    AND (last_autovacuum < now() - interval '7 days' OR last_autovacuum IS NULL)
+                    AND n_dead_tup > 100
+                )
+            )
+            ORDER BY n_dead_tup DESC;
+        `);
+
+        if (tablesToVacuum.length === 0) {
+            console.log('✅ Keine Tabellen benötigen Vacuum.\n');
+            await sequelize.close();
+            process.exit(0);
+        }
+
+        console.log(`📋 Gefunden: ${tablesToVacuum.length} Tabellen benötigen Vacuum\n`);
+
+        // Zeige Tabellen
+        console.log('Tabellen, die gevacuumt werden:');
+        tablesToVacuum.forEach((t, i) => {
+            console.log(`   ${i + 1}. ${t.table_name}`);
+            console.log(`      Größe: ${t.table_size}, Tote Zeilen: ${parseInt(t.n_dead_tup).toLocaleString()} (${t.dead_percent}%)`);
+        });
+        console.log('');
+
+        // Frage Bestätigung
+        const readline = require('readline');
+        const rl = readline.createInterface({
+            input: process.stdin,
+            output: process.stdout
+        });
+
+        const answer = await new Promise((resolve) => {
+            rl.question('Möchtest du VACUUM ANALYZE auf diesen Tabellen ausführen? (j/n): ', resolve);
+        });
+        rl.close();
+
+        if (answer.toLowerCase() !== 'j' && answer.toLowerCase() !== 'y' && answer.toLowerCase() !== 'ja' && answer.toLowerCase() !== 'yes') {
+            console.log('❌ Abgebrochen.\n');
+            await sequelize.close();
+            process.exit(0);
+        }
+
+        console.log('\n🧹 Starte Vacuum...\n');
+
+        // Führe VACUUM ANALYZE aus
+        for (let i = 0; i < tablesToVacuum.length; i++) {
+            const table = tablesToVacuum[i];
+            const startTime = Date.now();
+            
+            try {
+                console.log(`[${i + 1}/${tablesToVacuum.length}] Vacuuming ${table.table_name}...`);
+                
+                await sequelize.query(`VACUUM ANALYZE ${table.table_name};`);
+                
+                const duration = ((Date.now() - startTime) / 1000).toFixed(2);
+                console.log(`   ✅ Fertig in ${duration}s\n`);
+            } catch (error) {
+                console.error(`   ❌ Fehler: ${error.message}\n`);
+            }
+        }
+
+        console.log('='.repeat(60));
+        console.log('✅ Vacuum abgeschlossen\n');
+
+        await sequelize.close();
+        process.exit(0);
+
+    } catch (error) {
+        console.error('❌ Fehler:', error.message);
+        console.error(error.stack);
+        process.exit(1);
+    }
+}
+
+main();

build-local.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+
+# YourPart Daemon Local Build Script für OpenSUSE Tumbleweed
+# Führen Sie dieses Script lokal auf Ihrem Entwicklungsrechner aus
+
+set -euo pipefail
+
+# Farben für Output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+log_info() {
+    echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+log_success() {
+    echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+log_warning() {
+    echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+log_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+log_info "Starte lokalen Build für YourPart Daemon auf OpenSUSE Tumbleweed..."
+
+# Prüfe ob wir im richtigen Verzeichnis sind
+if [ ! -f "CMakeLists.txt" ] || [ ! -f "daemon.conf" ]; then
+    log_error "Bitte führen Sie dieses Script aus dem Projektverzeichnis aus!"
+    exit 1
+fi
+
+# Prüfe Dependencies
+log_info "Prüfe Dependencies..."
+if ! command -v cmake &> /dev/null; then
+    log_error "CMake nicht gefunden. Führen Sie zuerst install-dependencies-opensuse.sh aus!"
+    exit 1
+fi
+
+if ! command -v g++ &> /dev/null; then
+    log_error "G++ nicht gefunden. Führen Sie zuerst install-dependencies-opensuse.sh aus!"
+    exit 1
+fi
+
+# Erstelle Build-Verzeichnis
+log_info "Erstelle Build-Verzeichnis..."
+if [ ! -d "build" ]; then
+    mkdir build
+fi
+
+cd build
+
+# Konfiguriere CMake
+log_info "Konfiguriere CMake..."
+cmake .. -DCMAKE_BUILD_TYPE=Release
+
+# Kompiliere
+log_info "Kompiliere Projekt..."
+make -j$(nproc)
+
+cd ..
+
+log_success "Lokaler Build abgeschlossen!"
+log_info ""
+log_info "Build-Ergebnisse:"
+log_info "- Binärdatei: build/yourpart-daemon"
+log_info "- Größe: $(du -h build/yourpart-daemon | cut -f1)"
+log_info ""
+log_info "Nächste Schritte:"
+log_info "1. Testen Sie die Binärdatei lokal"
+log_info "2. Deployen Sie auf den Server mit deploy.sh"
+log_info "3. Oder verwenden Sie deploy-server.sh direkt auf dem Server"

check-lesson-exercises.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+# Script zum Prüfen, ob Übungen für eine Lektion vorhanden sind
+# Verwendung: ./check-lesson-exercises.sh [lesson_id]
+
+LESSON_ID="${1:-1}"
+
+echo "🔍 Prüfe Übungen für Lektion ID: $LESSON_ID"
+echo ""
+
+psql -U yourpart -d yp3 << EOF
+-- Prüfe Lektion
+SELECT 
+    l.id,
+    l.title,
+    l.course_id,
+    COUNT(e.id) as exercise_count
+FROM community.vocab_course_lesson l
+LEFT JOIN community.vocab_grammar_exercise e ON e.lesson_id = l.id
+WHERE l.id = $LESSON_ID
+GROUP BY l.id, l.title, l.course_id;
+
+-- Zeige alle Übungen für diese Lektion
+SELECT 
+    e.id,
+    e.exercise_number,
+    e.title,
+    e.exercise_type_id,
+    et.name as exercise_type_name
+FROM community.vocab_grammar_exercise e
+LEFT JOIN community.vocab_grammar_exercise_type et ON et.id = e.exercise_type_id
+WHERE e.lesson_id = $LESSON_ID
+ORDER BY e.exercise_number;
+EOF

check-vocab-schema.sql

@@ -0,0 +1,38 @@
+-- ============================================
+-- Prüfe ob alle notwendigen Spalten vorhanden sind
+-- ============================================
+-- Führe diese Queries auf dem Server aus, um zu prüfen, ob alles vorhanden ist
+
+-- Prüfe native_language_id in vocab_course
+SELECT 
+    column_name, 
+    data_type, 
+    is_nullable
+FROM information_schema.columns 
+WHERE table_schema = 'community' 
+  AND table_name = 'vocab_course' 
+  AND column_name = 'native_language_id';
+
+-- Prüfe cultural_notes in vocab_course_lesson
+SELECT 
+    column_name, 
+    data_type, 
+    is_nullable
+FROM information_schema.columns 
+WHERE table_schema = 'community' 
+  AND table_name = 'vocab_course_lesson' 
+  AND column_name = 'cultural_notes';
+
+-- Prüfe ob vocab_grammar_exercise Tabelle existiert
+SELECT EXISTS (
+    SELECT FROM information_schema.tables 
+    WHERE table_schema = 'community' 
+    AND table_name = 'vocab_grammar_exercise'
+);
+
+-- Prüfe ob vocab_grammar_exercise_type Tabelle existiert
+SELECT EXISTS (
+    SELECT FROM information_schema.tables 
+    WHERE table_schema = 'community' 
+    AND table_name = 'vocab_grammar_exercise_type'
+);

check-websocket-services.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+echo "=== WebSocket-Services Diagnose ==="
+echo ""
+
+echo "1. Prüfe Backend-Service-Status:"
+sudo systemctl status yourpart-backend --no-pager -l | head -20
+echo ""
+
+echo "2. Prüfe Daemon-Service-Status:"
+sudo systemctl status yourpart-daemon --no-pager -l | head -20
+echo ""
+
+echo "3. Prüfe Backend-Logs (letzte 30 Zeilen):"
+sudo journalctl -u yourpart-backend -n 30 --no-pager | grep -E "(Socket|HTTPS|TLS|Port|4443|2020)" || echo "Keine relevanten Logs gefunden"
+echo ""
+
+echo "4. Prüfe Daemon-Logs (letzte 30 Zeilen):"
+sudo journalctl -u yourpart-daemon -n 30 --no-pager | grep -E "(Daemon|WSS|TLS|Port|4551|connection)" || echo "Keine relevanten Logs gefunden"
+echo ""
+
+echo "5. Prüfe, welche Ports lauschen:"
+echo "   Port 2020 (API):"
+sudo netstat -tlnp 2>/dev/null | grep ":2020 " || echo "   ❌ Port 2020 lauscht nicht"
+echo "   Port 4443 (Socket.io):"
+sudo netstat -tlnp 2>/dev/null | grep ":4443 " || echo "   ❌ Port 4443 lauscht nicht"
+echo "   Port 4551 (Daemon):"
+sudo netstat -tlnp 2>/dev/null | grep ":4551 " || echo "   ❌ Port 4551 lauscht nicht"
+echo ""
+
+echo "6. Prüfe Firewall-Regeln:"
+sudo ufw status | grep -E "(4443|4551)" || echo "   Keine Firewall-Regeln für diese Ports gefunden"
+echo ""
+
+echo "7. Prüfe Backend-Umgebungsvariablen:"
+sudo systemctl show yourpart-backend --property=Environment --no-pager | grep -E "(SOCKET_IO|TLS)" || echo "   Keine Socket.io TLS-Variablen gefunden"
+echo ""
+
+echo "8. Prüfe Daemon-Umgebungsvariablen:"
+sudo systemctl show yourpart-daemon --property=Environment --no-pager | grep -E "(DAEMON|TLS)" || echo "   Keine Daemon TLS-Variablen gefunden"
+echo ""
+
+echo "9. Teste TLS-Zertifikate:"
+if [ -f "/etc/letsencrypt/live/www.your-part.de/privkey.pem" ]; then
+    echo "   ✅ Privkey gefunden"
+else
+    echo "   ❌ Privkey nicht gefunden"
+fi
+if [ -f "/etc/letsencrypt/live/www.your-part.de/fullchain.pem" ]; then
+    echo "   ✅ Fullchain gefunden"
+else
+    echo "   ❌ Fullchain nicht gefunden"
+fi

cmake/install-config.cmake

@@ -0,0 +1,175 @@
+# CMake-Skript für intelligente Konfigurationsdatei-Installation
+# Fügt nur fehlende Keys hinzu, ohne bestehende Konfiguration zu überschreiben
+
+# Pfade setzen
+set(CONFIG_FILE "/etc/yourpart/daemon.conf")
+set(TEMPLATE_FILE "/etc/yourpart/daemon.conf.example")
+
+# Prüfe ob Template existiert (wurde von CMake installiert)
+if(NOT EXISTS "${TEMPLATE_FILE}")
+    # Fallback 1: Versuche Template im Source-Verzeichnis zu finden
+    # CMAKE_CURRENT_LIST_DIR zeigt auf cmake/ während der Installation
+    get_filename_component(PROJECT_ROOT "${CMAKE_CURRENT_LIST_DIR}/.." ABSOLUTE)
+    set(TEMPLATE_FILE_FALLBACK "${PROJECT_ROOT}/daemon.conf")
+    
+    # Fallback 2: Versuche über CMAKE_SOURCE_DIR (falls verfügbar)
+    if(DEFINED CMAKE_SOURCE_DIR AND EXISTS "${CMAKE_SOURCE_DIR}/daemon.conf")
+        set(TEMPLATE_FILE "${CMAKE_SOURCE_DIR}/daemon.conf")
+        message(STATUS "Verwende Template aus CMAKE_SOURCE_DIR: ${TEMPLATE_FILE}")
+    elseif(EXISTS "${TEMPLATE_FILE_FALLBACK}")
+        set(TEMPLATE_FILE "${TEMPLATE_FILE_FALLBACK}")
+        message(STATUS "Verwende Template aus Source-Verzeichnis: ${TEMPLATE_FILE}")
+    else()
+        message(FATAL_ERROR "Template-Datei nicht gefunden!")
+        message(FATAL_ERROR "  Gesucht in: ${TEMPLATE_FILE}")
+        message(FATAL_ERROR "  Fallback 1: ${TEMPLATE_FILE_FALLBACK}")
+        if(DEFINED CMAKE_SOURCE_DIR)
+            message(FATAL_ERROR "  Fallback 2: ${CMAKE_SOURCE_DIR}/daemon.conf")
+        endif()
+    endif()
+else()
+    message(STATUS "Verwende installierte Template-Datei: ${TEMPLATE_FILE}")
+endif()
+
+# Prüfe ob Ziel-Verzeichnis existiert
+if(NOT EXISTS "/etc/yourpart")
+    message(STATUS "Erstelle Verzeichnis /etc/yourpart...")
+    execute_process(
+        COMMAND ${CMAKE_COMMAND} -E make_directory "/etc/yourpart"
+        RESULT_VARIABLE MKDIR_RESULT
+    )
+    if(NOT MKDIR_RESULT EQUAL 0)
+        message(FATAL_ERROR "Konnte Verzeichnis /etc/yourpart nicht erstellen")
+    endif()
+endif()
+
+# Prüfe ob Config-Datei existiert
+if(NOT EXISTS "${CONFIG_FILE}")
+    message(STATUS "Konfigurationsdatei existiert nicht, erstelle neue...")
+    execute_process(
+        COMMAND ${CMAKE_COMMAND} -E copy "${TEMPLATE_FILE}" "${CONFIG_FILE}"
+        RESULT_VARIABLE COPY_RESULT
+    )
+    if(NOT COPY_RESULT EQUAL 0)
+        message(FATAL_ERROR "Konnte Konfigurationsdatei nicht erstellen: ${CONFIG_FILE}")
+    endif()
+    message(STATUS "Neue Konfigurationsdatei erstellt: ${CONFIG_FILE}")
+else()
+    message(STATUS "Konfigurationsdatei existiert bereits, prüfe auf fehlende Keys...")
+    
+    # Verwende ein Python-Skript für intelligentes Merging
+    # (CMake hat keine gute Unterstützung für komplexe String-Manipulation)
+    # Erstelle temporäres Python-Skript im Build-Verzeichnis
+    set(MERGE_SCRIPT "${CMAKE_CURRENT_BINARY_DIR}/merge-config.py")
+    
+    # Erstelle Python-Skript
+    file(WRITE "${MERGE_SCRIPT}" 
+"#!/usr/bin/env python3
+import sys
+import re
+import os
+
+def merge_config(template_file, config_file):
+    \"\"\"Fügt fehlende Keys aus Template zur Config hinzu, ohne bestehende zu überschreiben\"\"\"
+    
+    # Lese bestehende Config
+    existing_keys = {}
+    existing_lines = []
+    if os.path.exists(config_file):
+        with open(config_file, 'r') as f:
+            for line in f:
+                existing_lines.append(line.rstrip())
+                # Extrahiere Key=Value Paare
+                match = re.match(r'^\\s*([^#=]+?)\\s*=\\s*(.+?)\\s*$', line)
+                if match:
+                    key = match.group(1).strip()
+                    value = match.group(2).strip()
+                    existing_keys[key] = value
+    
+    # Lese Template
+    new_keys = {}
+    if not os.path.exists(template_file):
+        print(f'Fehler: Template-Datei {template_file} nicht gefunden!', file=sys.stderr)
+        return False
+    
+    with open(template_file, 'r') as f:
+        for line in f:
+            # Extrahiere Key=Value Paare
+            match = re.match(r'^\\s*([^#=]+?)\\s*=\\s*(.+?)\\s*$', line)
+            if match:
+                key = match.group(1).strip()
+                value = match.group(2).strip()
+                new_keys[key] = value
+    
+    # Füge fehlende Keys hinzu
+    added_count = 0
+    for key, value in new_keys.items():
+        if key not in existing_keys:
+            existing_lines.append(f'{key}={value}')
+            print(f'Füge fehlenden Key hinzu: {key}')
+            added_count += 1
+    
+    # Schreibe aktualisierte Config
+    if added_count > 0:
+        with open(config_file, 'w') as f:
+            for line in existing_lines:
+                f.write(line + '\\n')
+        print(f'{added_count} neue Keys hinzugefügt')
+    else:
+        print('Keine neuen Keys hinzugefügt - Konfiguration ist aktuell')
+    
+    return True
+
+if __name__ == '__main__':
+    if len(sys.argv) != 3:
+        print('Verwendung: merge-config.py <template> <config>', file=sys.stderr)
+        sys.exit(1)
+    
+    template_file = sys.argv[1]
+    config_file = sys.argv[2]
+    
+    if not merge_config(template_file, config_file):
+        sys.exit(1)
+")
+    
+    # Setze Ausführungsrechte
+    file(CHMOD "${MERGE_SCRIPT}" PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
+    
+    # Führe Merge-Skript aus
+    execute_process(
+        COMMAND python3 "${MERGE_SCRIPT}" "${TEMPLATE_FILE}" "${CONFIG_FILE}"
+        RESULT_VARIABLE MERGE_RESULT
+        OUTPUT_VARIABLE MERGE_OUTPUT
+        ERROR_VARIABLE MERGE_ERROR
+    )
+    
+    if(NOT MERGE_RESULT EQUAL 0)
+        message(WARNING "Fehler beim Mergen der Config: ${MERGE_ERROR}")
+    else()
+        message(STATUS "${MERGE_OUTPUT}")
+    endif()
+endif()
+
+# Setze korrekte Berechtigungen (Fehler werden ignoriert, da Berechtigungen optional sind)
+execute_process(
+    COMMAND chown yourpart:yourpart "${CONFIG_FILE}"
+    RESULT_VARIABLE CHOWN_RESULT
+    ERROR_QUIET
+)
+
+if(NOT CHOWN_RESULT EQUAL 0)
+    message(WARNING "Konnte Besitzer von ${CONFIG_FILE} nicht ändern (möglicherweise kein Root oder User existiert nicht)")
+endif()
+
+execute_process(
+    COMMAND chmod 600 "${CONFIG_FILE}"
+    RESULT_VARIABLE CHMOD_RESULT
+    ERROR_QUIET
+)
+
+if(NOT CHMOD_RESULT EQUAL 0)
+    message(WARNING "Konnte Berechtigungen von ${CONFIG_FILE} nicht ändern")
+endif()
+
+message(STATUS "Konfigurationsdatei-Verwaltung abgeschlossen: ${CONFIG_FILE}")
+

daemon.conf

@@ -0,0 +1,10 @@
+DB_HOST=localhost
+DB_PORT=5432
+DB_NAME=yp3
+DB_USER=yourpart
+DB_PASSWORD=hitomisan
+THREAD_COUNT=4
+WEBSOCKET_PORT=4551
+WEBSOCKET_SSL_ENABLED=false
+WEBSOCKET_SSL_CERT_PATH=/home/torsten/Programs/yourpart-daemon/ssl-certs/server.crt
+WEBSOCKET_SSL_KEY_PATH=/home/torsten/Programs/yourpart-daemon/ssl-certs/server.key

daemon.log

@@ -0,0 +1,5 @@
+WebSocket Server starting on port 4551 (no SSL)
+[2025/09/29 08:50:10:6854] N: lws_create_context: LWS: 4.3.5-unknown, NET CLI SRV H1 H2 WS ConMon IPv6-absent
+[2025/09/29 08:50:10:6874] N: __lws_lc_tag:  ++ [wsi|0|pipe] (1)
+[2025/09/29 08:50:10:6874] N: __lws_lc_tag:  ++ [vh|0|netlink] (1)
+WebSocket-Server erfolgreich gestartet auf Port 4551

debug-lesson-exercises.js

@@ -0,0 +1,78 @@
+#!/usr/bin/env node
+/**
+ * Debug-Script zum Prüfen, ob Übungen für eine Lektion vorhanden sind
+ * Verwendung: node debug-lesson-exercises.js [lessonId]
+ */
+
+import { sequelize } from './backend/utils/sequelize.js';
+import VocabCourseLesson from './backend/models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from './backend/models/community/vocab_grammar_exercise.js';
+
+const lessonId = process.argv[2] ? parseInt(process.argv[2]) : 1;
+
+async function debugLesson() {
+  try {
+    await sequelize.authenticate();
+    console.log('✅ Datenbankverbindung erfolgreich\n');
+
+    // Lade Lektion mit Übungen (wie im Backend)
+    const lesson = await VocabCourseLesson.findByPk(lessonId, {
+      include: [
+        {
+          model: require('./backend/models/community/vocab_course.js').default,
+          as: 'course'
+        },
+        {
+          model: VocabGrammarExercise,
+          as: 'grammarExercises',
+          include: [
+            {
+              model: require('./backend/models/community/vocab_grammar_exercise_type.js').default,
+              as: 'exerciseType'
+            }
+          ],
+          required: false,
+          separate: true,
+          order: [['exerciseNumber', 'ASC']]
+        }
+      ]
+    });
+
+    if (!lesson) {
+      console.log(`❌ Lektion ${lessonId} nicht gefunden`);
+      return;
+    }
+
+    console.log(`📚 Lektion: ${lesson.title} (ID: ${lesson.id})`);
+    console.log(`   Kurs: ${lesson.course?.title || 'N/A'}`);
+    console.log(`   Übungen (via Include): ${lesson.grammarExercises ? lesson.grammarExercises.length : 0}\n`);
+
+    // Prüfe direkt in der Datenbank
+    const directExercises = await VocabGrammarExercise.findAll({
+      where: { lessonId: lesson.id },
+      order: [['exerciseNumber', 'ASC']]
+    });
+
+    console.log(`📊 Direkte Abfrage: ${directExercises.length} Übung(en) gefunden`);
+    directExercises.forEach((ex, idx) => {
+      console.log(`   ${idx + 1}. ${ex.title} (ID: ${ex.id}, Typ: ${ex.exerciseTypeId})`);
+    });
+
+    // Plain object
+    const plain = lesson.get({ plain: true });
+    console.log(`\n📦 Plain Object:`);
+    console.log(`   grammarExercises: ${plain.grammarExercises ? plain.grammarExercises.length : 'undefined'}`);
+    if (plain.grammarExercises && plain.grammarExercises.length > 0) {
+      plain.grammarExercises.forEach((ex, idx) => {
+        console.log(`   ${idx + 1}. ${ex.title} (ID: ${ex.id})`);
+      });
+    }
+
+  } catch (error) {
+    console.error('❌ Fehler:', error);
+  } finally {
+    await sequelize.close();
+  }
+}
+
+debugLesson();

deploy-frontend.sh

@@ -34,6 +34,16 @@ echo "VITE_API_BASE_URL=$VITE_API_BASE_URL"
 echo "VITE_DAEMON_SOCKET=$VITE_DAEMON_SOCKET"
 echo "VITE_CHAT_WS_URL=$VITE_CHAT_WS_URL"
 
+# 5a. Dependencies installieren
+echo "Installiere Dependencies..."
+npm install
+
+if [ $? -ne 0 ]; then
+    echo "❌ npm install fehlgeschlagen!"
+    exit 1
+fi
+
+# 5b. Frontend neu bauen
 npm run build
 
 if [ $? -ne 0 ]; then

deploy-server.sh

@@ -0,0 +1,203 @@
+#!/bin/bash
+
+# YourPart Daemon Server-Side Deployment Script
+# Führen Sie dieses Script auf dem Server aus, nachdem Sie den Code hochgeladen haben
+
+set -euo pipefail
+
+# Farben für Output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Konfiguration
+DAEMON_USER="yourpart"
+PROJECT_NAME="yourpart-daemon"
+REMOTE_DIR="/opt/yourpart"
+SERVICE_NAME="yourpart-daemon"
+BUILD_DIR="build"
+
+# Funktionen
+log_info() {
+    echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+log_success() {
+    echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+log_warning() {
+    echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+log_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+# Prüfe ob wir im richtigen Verzeichnis sind
+if [ ! -f "CMakeLists.txt" ] || [ ! -f "daemon.conf" ]; then
+    log_error "Bitte führen Sie dieses Script aus dem Projektverzeichnis aus!"
+    log_info "Stellen Sie sicher, dass CMakeLists.txt und daemon.conf vorhanden sind."
+    exit 1
+fi
+
+log_info "Starte Server-Side Deployment für YourPart Daemon..."
+
+# 1. Prüfe Dependencies
+# Prüfe ob wir root-Rechte haben für bestimmte Operationen
+check_sudo() {
+    if ! sudo -n true 2>/dev/null; then
+        log_info "Einige Operationen benötigen sudo-Rechte..."
+    fi
+}
+
+log_info "Prüfe Dependencies..."
+if ! command -v cmake &> /dev/null; then
+    log_error "CMake nicht gefunden. Führen Sie zuerst install-dependencies-ubuntu22.sh aus!"
+    exit 1
+fi
+
+if ! command -v gcc-15 &> /dev/null && ! command -v gcc &> /dev/null; then
+    log_error "GCC nicht gefunden. Führen Sie zuerst install-dependencies-ubuntu22.sh aus!"
+    exit 1
+fi
+
+# 2. Baue Projekt
+log_info "Baue Projekt auf dem Server..."
+if [ ! -d "$BUILD_DIR" ]; then
+    mkdir "$BUILD_DIR"
+fi
+
+cd "$BUILD_DIR"
+
+# Konfiguriere CMake
+log_info "Konfiguriere CMake..."
+if command -v gcc-15 &> /dev/null; then
+    log_info "Verwende GCC 15 für C++23"
+    cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=23 -DCMAKE_C_COMPILER=gcc-15 -DCMAKE_CXX_COMPILER=g++-15
+elif command -v gcc-13 &> /dev/null; then
+    log_info "Verwende GCC 13 für C++23"
+    cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=23 -DCMAKE_C_COMPILER=gcc-13 -DCMAKE_CXX_COMPILER=g++-13
+else
+    log_info "Verwende Standard-GCC 11 mit C++20"
+    cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=20
+fi
+
+# Kompiliere
+log_info "Kompiliere Projekt..."
+make -j$(nproc)
+
+cd ..
+
+log_success "Build abgeschlossen"
+
+# 3. Erstelle Benutzer falls nicht vorhanden
+log_info "Prüfe Benutzer $DAEMON_USER..."
+if ! id "$DAEMON_USER" &>/dev/null; then
+    log_info "Erstelle Benutzer $DAEMON_USER..."
+    sudo useradd --system --shell /bin/false --home-dir "$REMOTE_DIR" --create-home "$DAEMON_USER"
+    log_success "Benutzer $DAEMON_USER erstellt"
+else
+    log_info "Benutzer $DAEMON_USER existiert bereits"
+fi
+
+# 4. Erstelle Verzeichnisse
+log_info "Erstelle Verzeichnisse..."
+mkdir -p "$REMOTE_DIR"/{logs,config}
+sudo mkdir -p /etc/yourpart
+sudo mkdir -p /var/log/yourpart
+
+# 5. Stoppe Service falls läuft
+log_info "Stoppe Service falls läuft..."
+if sudo systemctl is-active --quiet "$SERVICE_NAME"; then
+    log_info "Stoppe laufenden Service..."
+    sudo systemctl stop "$SERVICE_NAME"
+    sleep 2
+fi
+
+# 6. Kopiere Dateien
+log_info "Kopiere Dateien..."
+sudo cp "$BUILD_DIR/yourpart-daemon" /usr/local/bin/
+
+# Intelligente Konfigurationsdatei-Verwaltung
+log_info "Verwalte Konfigurationsdatei..."
+if [ ! -f "/etc/yourpart/daemon.conf" ]; then
+    log_info "Konfigurationsdatei existiert nicht, kopiere neue..."
+    sudo cp daemon.conf /etc/yourpart/
+    sudo chown yourpart:yourpart /etc/yourpart/daemon.conf
+else
+    log_info "Konfigurationsdatei existiert bereits, prüfe auf fehlende Keys..."
+    # Erstelle temporäre Datei mit neuen Keys
+    temp_conf="/tmp/daemon.conf.new"
+    cp daemon.conf "$temp_conf"
+    
+    # Füge fehlende Keys hinzu
+    while IFS='=' read -r key value; do
+        # Überspringe Kommentare und leere Zeilen
+        if [[ "$key" =~ ^[[:space:]]*# ]] || [[ -z "$key" ]]; then
+            continue
+        fi
+        # Entferne Leerzeichen am Anfang
+        key=$(echo "$key" | sed 's/^[[:space:]]*//')
+        
+        # Prüfe ob Key bereits existiert
+        if ! grep -q "^[[:space:]]*$key[[:space:]]*=" /etc/yourpart/daemon.conf; then
+            log_info "Füge fehlenden Key hinzu: $key"
+            echo "$key=$value" | sudo tee -a /etc/yourpart/daemon.conf > /dev/null
+        fi
+    done < "$temp_conf"
+    
+    rm -f "$temp_conf"
+fi
+
+sudo cp yourpart-daemon.service /etc/systemd/system/
+
+# 7. Setze Berechtigungen
+log_info "Setze Berechtigungen..."
+sudo chmod +x /usr/local/bin/yourpart-daemon
+sudo chown -R "$DAEMON_USER:$DAEMON_USER" "$REMOTE_DIR"
+sudo chown -R "$DAEMON_USER:$DAEMON_USER" /var/log/yourpart
+sudo chown yourpart:yourpart /etc/yourpart/daemon.conf
+sudo chmod 600 /etc/yourpart/daemon.conf
+
+# 8. Lade systemd neu
+log_info "Lade systemd Konfiguration neu..."
+sudo systemctl daemon-reload
+
+# 9. Aktiviere Service
+log_info "Aktiviere Service..."
+sudo systemctl enable "$SERVICE_NAME"
+
+# 10. Starte Service
+log_info "Starte Service..."
+sudo systemctl start "$SERVICE_NAME" &
+sleep 3
+
+# 11. Prüfe Status
+log_info "Prüfe Service-Status..."
+sleep 2
+if sudo systemctl is-active --quiet "$SERVICE_NAME"; then
+    log_success "Service läuft erfolgreich!"
+    sudo systemctl status "$SERVICE_NAME" --no-pager
+else
+    log_error "Service konnte nicht gestartet werden!"
+    log_info "Logs anzeigen mit: sudo journalctl -u $SERVICE_NAME -f"
+    exit 1
+fi
+
+# 11. Zeige nützliche Befehle
+log_success "Deployment erfolgreich abgeschlossen!"
+log_info ""
+log_info "Nützliche Befehle:"
+log_info "- Service-Status: sudo systemctl status $SERVICE_NAME"
+log_info "- Service stoppen: sudo systemctl stop $SERVICE_NAME"
+log_info "- Service starten: sudo systemctl start $SERVICE_NAME"
+log_info "- Service neustarten: sudo systemctl restart $SERVICE_NAME"
+log_info "- Logs anzeigen: sudo journalctl -u $SERVICE_NAME -f"
+log_info "- Logs der letzten 100 Zeilen: sudo journalctl -u $SERVICE_NAME -n 100"
+log_info ""
+log_info "Konfigurationsdatei: /etc/yourpart/daemon.conf"
+log_info "Log-Verzeichnis: /var/log/yourpart/"
+log_info "Service-Datei: /etc/systemd/system/$SERVICE_NAME.service"

deploy.sh

@@ -1,36 +1,183 @@
+# YourPart Daemon Deployment Script für Ubuntu 22
+# Verwendung: ./deploy.sh [server_ip] [ssh_user]
+
+set -euo pipefail
+
+# Farben für Output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Konfiguration
+SERVER_IP="${1:-your-part.de}"
+SSH_USER="${2:-root}"
+DAEMON_USER="yourpart"
+PROJECT_NAME="yourpart-daemon"
+REMOTE_DIR="/opt/yourpart"
+SERVICE_NAME="yourpart-daemon"
+
+# Funktionen
+log_info() {
+    echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+log_success() {
+    echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+log_warning() {
+    echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+log_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+# Prüfe ob wir im richtigen Verzeichnis sind
+if [ ! -f "CMakeLists.txt" ] || [ ! -f "daemon.conf" ]; then
+    log_error "Bitte führen Sie dieses Script aus dem Projektverzeichnis aus!"
+    exit 1
+fi
+
+log_info "Starte Deployment für YourPart Daemon..."
+log_info "Server: $SERVER_IP"
+log_info "SSH User: $SSH_USER"
+
+# 1. Lokales Build
+log_info "Baue Projekt lokal..."
+if [ ! -d "build" ]; then
+    mkdir build
+fi
+
+cd build
+cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=23
+make -j$(nproc)
+cd ..
+
+log_success "Lokaler Build abgeschlossen"
+
+# 2. Erstelle Deployment-Paket
+log_info "Erstelle Deployment-Paket..."
+DEPLOY_DIR="deploy_package"
+rm -rf "$DEPLOY_DIR"
+mkdir -p "$DEPLOY_DIR"
+
+# Kopiere Binärdatei
+cp build/yourpart-daemon "$DEPLOY_DIR/"
+
+# Kopiere Konfigurationsdatei
+cp daemon.conf "$DEPLOY_DIR/"
+
+# Kopiere Service-Datei
+cp yourpart-daemon.service "$DEPLOY_DIR/"
+
+# Erstelle Installations-Script
+cat > "$DEPLOY_DIR/install.sh" << 'EOF'
 #!/bin/bash
+set -euo pipefail
 
-echo "=== YourPart Deployment Script ==="
+# Farben
-echo ""
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
 
-# Prüfen ob wir im richtigen Verzeichnis sind
+log_info() { echo -e "${BLUE}[INFO]${NC} $1"; }
-if [ ! -f "package.json" ]; then
+log_success() { echo -e "${GREEN}[SUCCESS]${NC} $1"; }
-    echo "Error: Please run this script from the YourPart3 root directory"
+log_warning() { echo -e "${YELLOW}[WARNING]${NC} $1"; }
-    exit 1
+log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
+
+DAEMON_USER="yourpart"
+REMOTE_DIR="/opt/yourpart"
+SERVICE_NAME="yourpart-daemon"
+
+log_info "Installiere YourPart Daemon..."
+
+# Erstelle Benutzer falls nicht vorhanden
+if ! id "$DAEMON_USER" &>/dev/null; then
+    log_info "Erstelle Benutzer $DAEMON_USER..."
+    useradd --system --shell /bin/false --home-dir "$REMOTE_DIR" --create-home "$DAEMON_USER"
+    log_success "Benutzer $DAEMON_USER erstellt"
+else
+    log_info "Benutzer $DAEMON_USER existiert bereits"
 fi
 
-# Prüfen ob sudo verfügbar ist
+# Erstelle Verzeichnisse
-if ! command -v sudo &> /dev/null; then
+log_info "Erstelle Verzeichnisse..."
-    echo "Error: sudo is required but not installed"
+mkdir -p "$REMOTE_DIR"/{logs,config}
-    exit 1
+mkdir -p /etc/yourpart
-fi
+mkdir -p /var/log/yourpart
 
-# Backend deployen
+# Kopiere Dateien
-echo ""
+log_info "Kopiere Dateien..."
-echo "=== Deploying Backend ==="
+cp yourpart-daemon /usr/local/bin/
-./deploy-backend.sh
+cp daemon.conf /etc/yourpart/
+cp yourpart-daemon.service /etc/systemd/system/
 
-# Frontend bauen und deployen
+# Setze Berechtigungen
-echo ""
+chmod +x /usr/local/bin/yourpart-daemon
-echo "=== Building and Deploying Frontend ==="
+chown -R "$DAEMON_USER:$DAEMON_USER" "$REMOTE_DIR"
-./deploy-frontend.sh
+chown -R "$DAEMON_USER:$DAEMON_USER" /var/log/yourpart
+chmod 600 /etc/yourpart/daemon.conf
 
-echo ""
+# Lade systemd neu
-echo "=== Deployment Completed! ==="
+log_info "Lade systemd Konfiguration neu..."
-echo "Your application should now be available at:"
+systemctl daemon-reload
-echo "  HTTP:  http://your-part.de (redirects to HTTPS)"
+
-echo "  HTTPS: https://www.your-part.de"
+# Aktiviere Service
-echo ""
+log_info "Aktiviere Service..."
-echo "To check logs:"
+systemctl enable "$SERVICE_NAME"
-echo "  Backend: sudo journalctl -u yourpart.service -f"
+
-echo "  Apache:  sudo tail -f /var/log/apache2/yourpart.*.log"
+log_success "Installation abgeschlossen!"
+log_info "Verwenden Sie 'systemctl start $SERVICE_NAME' um den Service zu starten"
+log_info "Verwenden Sie 'systemctl status $SERVICE_NAME' um den Status zu prüfen"
+log_info "Verwenden Sie 'journalctl -u $SERVICE_NAME -f' um die Logs zu verfolgen"
+EOF
+
+chmod +x "$DEPLOY_DIR/install.sh"
+
+# Erstelle Tarball
+tar -czf "${PROJECT_NAME}_deploy.tar.gz" -C "$DEPLOY_DIR" .
+
+log_success "Deployment-Paket erstellt: ${PROJECT_NAME}_deploy.tar.gz"
+
+# 3. Upload zum Server
+log_info "Lade Dateien zum Server hoch..."
+scp "${PROJECT_NAME}_deploy.tar.gz" "$SSH_USER@$SERVER_IP:/tmp/"
+
+# 4. Installation auf dem Server
+log_info "Installiere auf dem Server..."
+ssh "$SSH_USER@$SERVER_IP" << EOF
+set -euo pipefail
+
+# Entpacke Deployment-Paket
+cd /tmp
+tar -xzf "${PROJECT_NAME}_deploy.tar.gz"
+
+# Führe Installation aus
+./install.sh
+
+# Starte Service
+systemctl start $SERVICE_NAME
+
+# Prüfe Status
+systemctl status $SERVICE_NAME --no-pager
+
+# Aufräumen
+rm -f "${PROJECT_NAME}_deploy.tar.gz"
+rm -rf /tmp/yourpart-daemon /tmp/daemon.conf /tmp/yourpart-daemon.service /tmp/install.sh
+
+echo "Deployment erfolgreich abgeschlossen!"
+EOF
+
+# 5. Aufräumen
+log_info "Räume lokale Dateien auf..."
+rm -rf "$DEPLOY_DIR"
+rm -f "${PROJECT_NAME}_deploy.tar.gz"
+
+log_success "Deployment erfolgreich abgeschlossen!"
+log_info "Der YourPart Daemon läuft jetzt auf $SERVER_IP"
+log_info "Verwenden Sie 'ssh $SSH_USER@$SERVER_IP systemctl status $SERVICE_NAME' um den Status zu prüfen"

docs/BISAYA_4_WEEK_COURSE.md

@@ -0,0 +1,306 @@
+# Bisaya (Cebuano) 4-Wochen-Kurs - Vollständige Struktur
+
+## Kurs-Übersicht
+
+**Titel:** Bisaya für Familien - Schnellstart in 4 Wochen  
+**Ziel:** In 4 Wochen alltagstauglich Bisaya sprechen können  
+**Zeitaufwand:** ~30-40 Minuten pro Tag  
+**Schwierigkeit:** Anfänger (Level 1)
+
+## Lernziele & System
+
+### Zeitvorgaben pro Lektionstyp:
+- **Vokabeln:** 20-25 Minuten pro Tag
+- **Konversation:** 15-20 Minuten pro Tag
+- **Grammatik:** 20-25 Minuten pro Tag
+- **Wiederholung:** 30 Minuten pro Tag
+- **Tests:** 15-20 Minuten
+
+### Zielpunktzahlen:
+- **Vokabeln:** 85% zum Abschluss (sonst Wiederholung erforderlich)
+- **Konversation:** 80% zum Abschluss
+- **Grammatik:** 75% zum Abschluss
+- **Tests:** 80% zum Abschluss
+
+### Wiederholungslogik:
+- Lektionen mit `requiresReview: true` müssen wiederholt werden, wenn das Ziel nicht erreicht wird
+- Vokabel-Lektionen haben standardmäßig Wiederholung aktiviert
+- Konversations-Lektionen können ohne Wiederholung abgeschlossen werden
+
+## Woche 1: Grundlagen & Aussprache
+
+### Tag 1 (35 Min)
+1. **Begrüßungen & Höflichkeit** (15 Min, 80%, conversation)
+   - Kumusta? – Wie geht's?
+   - Maayo – Gut
+   - Salamat – Danke
+   - Palihug – Bitte
+   - Kulturell: Philippiner schätzen Höflichkeit sehr. Lächeln ist wichtig!
+
+2. **Überlebenssätze - Teil 1** (20 Min, 85%, vocab, Wiederholung)
+   - Die 10 wichtigsten Sätze für den Alltag
+   - Wala ko kasabot – Ich verstehe nicht
+   - Hinay-hinay lang – Bitte langsam
+   - Asa ang …? – Wo ist …?
+
+### Tag 2 (35 Min)
+3. **Familienwörter** (20 Min, 85%, vocab, Wiederholung)
+   - Mama / Nanay – Mutter
+   - Papa / Tatay – Vater
+   - Kuya – älterer Bruder
+   - Ate – ältere Schwester
+   - Lola / Lolo – Oma / Opa
+   - Kulturell: Kuya und Ate werden auch für Nicht-Verwandte verwendet!
+
+4. **Familien-Gespräche** (15 Min, 80%, conversation)
+   - Einfache Gespräche mit Familienmitgliedern
+   - Kumusta mo? – Wie geht es dir?
+
+### Tag 3 (35 Min)
+5. **Gefühle & Zuneigung** (15 Min, 80%, conversation)
+   - Mingaw ko nimo – Ich vermisse dich
+   - Nalipay ko nga makita ka – Ich freue mich, dich zu sehen
+   - Ganahan ko nimo – Ich mag dich
+   - Palangga taka – Ich hab dich lieb ❤️
+   - Kulturell: Palangga taka ist wärmer als "I love you"!
+
+6. **Überlebenssätze - Teil 2** (20 Min, 85%, vocab, Wiederholung)
+   - Weitere wichtige Alltagssätze
+   - Unsa ni? – Was ist das?
+   - Oo / Dili – Ja / Nein
+
+### Tag 4 (35 Min)
+7. **Essen & Fürsorge** (15 Min, 80%, conversation)
+   - Nikaon ka? – Hast du schon gegessen?
+   - Kaon ta – Lass uns essen
+   - Lami – Lecker
+   - Kulturell: Essen = Liebe! "Nikaon na ka?" ist sehr fürsorglich.
+
+8. **Essen & Trinken** (20 Min, 85%, vocab, Wiederholung)
+   - Wichtige Wörter rund ums Essen
+
+### Tag 5 (45 Min)
+9. **Woche 1 - Wiederholung** (30 Min, 80%, review)
+   - Wiederhole alle Inhalte der ersten Woche
+
+10. **Woche 1 - Vokabeltest** (15 Min, 80%, vocab, Wiederholung)
+    - Teste dein Wissen aus Woche 1
+
+## Woche 2: Alltag & Familie
+
+### Tag 6 (35 Min)
+11. **Alltagsgespräche - Teil 1** (15 Min, 80%, conversation)
+    - Kumusta ang imong adlaw? – Wie war dein Tag?
+    - Unsa imong ginabuhat? – Was machst du?
+
+12. **Haus & Familie** (20 Min, 85%, vocab, Wiederholung)
+    - Balay – Haus
+    - Kwarto – Zimmer
+    - Kusina – Küche
+    - Pamilya – Familie
+
+### Tag 7 (35 Min)
+13. **Alltagsgespräche - Teil 2** (15 Min, 80%, conversation)
+    - Asa ka padulong? – Wohin gehst du?
+    - Unsa imong plano? – Was ist dein Plan?
+
+14. **Ort & Richtung** (20 Min, 85%, vocab, Wiederholung)
+    - Asa – Wo
+    - dinhi – hier
+    - didto – dort
+    - padulong – gehen zu
+
+### Tag 8 (45 Min)
+15. **Zeitformen - Grundlagen** (25 Min, 75%, grammar, Wiederholung)
+    - Ni-kaon ko → Ich habe gegessen
+    - Mo-kaon ko → Ich werde essen
+    - Kulturell: Cebuano hat keine komplexen Zeiten wie Deutsch!
+
+16. **Zeit & Datum** (20 Min, 85%, vocab, Wiederholung)
+    - Karon – jetzt
+    - ugma – morgen
+    - gahapon – gestern
+    - karon adlaw – heute
+
+### Tag 9 (40 Min)
+17. **Einkaufen & Preise** (15 Min, 80%, conversation)
+    - Tagpila ni? – Wie viel kostet das?
+    - Pwede barato? – Kann es billiger sein?
+    - Kulturell: Handeln ist in den Philippinen üblich!
+
+18. **Zahlen & Preise** (25 Min, 85%, vocab, Wiederholung)
+    - Zahlen 1-100
+    - Preise und Mengen
+
+### Tag 10 (45 Min)
+19. **Woche 2 - Wiederholung** (30 Min, 80%, review)
+    - Wiederhole alle Inhalte der zweiten Woche
+
+20. **Woche 2 - Vokabeltest** (15 Min, 80%, vocab, Wiederholung)
+    - Teste dein Wissen aus Woche 2
+
+## Woche 3: Vertiefung
+
+### Tag 11 (35 Min)
+21. **Gefühle & Emotionen** (15 Min, 80%, conversation)
+    - Nalipay – glücklich
+    - nasubo – traurig
+    - nahadlok – ängstlich
+
+22. **Gefühle & Emotionen** (20 Min, 85%, vocab, Wiederholung)
+    - Wörter für verschiedene Gefühle
+
+### Tag 12 (35 Min)
+23. **Gesundheit & Wohlbefinden** (15 Min, 80%, conversation)
+    - Sakit – Schmerz/Krankheit
+    - maayo – gut
+    - tambal – Medizin
+    - doktor – Arzt
+
+24. **Körper & Gesundheit** (20 Min, 85%, vocab, Wiederholung)
+    - Wörter rund um den Körper
+
+### Tag 13 (35 Min)
+25. **Höflichkeitsformen** (20 Min, 75%, grammar, Wiederholung)
+    - Palihug – Bitte
+    - Pwede – Kann ich?
+    - Tabang – Hilfe
+    - Kulturell: Höflichkeit ist extrem wichtig!
+
+26. **Bitten & Fragen** (15 Min, 80%, conversation)
+    - Wie man höflich fragt und bittet
+
+### Tag 14 (35 Min)
+27. **Kinder & Familie** (15 Min, 80%, conversation)
+    - Gespräche mit und über Kinder
+    - Kulturell: Kinder sind sehr wichtig!
+
+28. **Kinder & Spiel** (20 Min, 85%, vocab, Wiederholung)
+    - Wörter für Kinder und Spielsachen
+
+### Tag 15 (45 Min)
+29. **Woche 3 - Wiederholung** (30 Min, 80%, review)
+    - Wiederhole alle Inhalte der dritten Woche
+
+30. **Woche 3 - Vokabeltest** (15 Min, 80%, vocab, Wiederholung)
+    - Teste dein Wissen aus Woche 3
+
+## Woche 4: Freies Sprechen
+
+### Tag 16 (45 Min)
+31. **Freies Gespräch - Thema 1** (20 Min, 75%, conversation)
+    - Übe freies Sprechen zu verschiedenen Themen
+    - Kulturell: Fehler sind okay! Philippiner schätzen das Bemühen.
+
+32. **Wiederholung - Woche 1 & 2** (25 Min, 85%, vocab, Wiederholung)
+    - Wiederhole wichtige Vokabeln
+
+### Tag 17 (45 Min)
+33. **Freies Gespräch - Thema 2** (20 Min, 75%, conversation)
+    - Weitere Übung im freien Sprechen
+
+34. **Wiederholung - Woche 3** (25 Min, 85%, vocab, Wiederholung)
+    - Wiederhole wichtige Vokabeln aus Woche 3
+
+### Tag 18 (55 Min)
+35. **Komplexere Gespräche** (25 Min, 75%, conversation)
+    - Längere Gespräche zu verschiedenen Themen
+    - Kulturell: Je mehr du sprichst, desto besser wirst du!
+
+36. **Gesamtwiederholung** (30 Min, 80%, review)
+    - Wiederhole alle wichtigen Inhalte
+
+### Tag 19 (45 Min)
+37. **Praktische Übung** (25 Min, 75%, conversation)
+    - Simuliere echte Gesprächssituationen
+
+38. **Abschlusstest - Vokabeln** (20 Min, 80%, vocab, Wiederholung)
+    - Finaler Vokabeltest über den gesamten Kurs
+
+### Tag 20 (45 Min)
+39. **Abschlussprüfung** (30 Min, 80%, review)
+    - Finale Prüfung über alle Kursinhalte
+    - Kulturell: Gratulation zum Abschluss!
+
+40. **Kulturelle Tipps & Tricks** (15 Min, 0%, culture)
+    - Wichtige kulturelle Hinweise für den Alltag
+    - Kulturelles Verständnis ist genauso wichtig wie die Sprache!
+
+## Kurs-Statistik
+
+- **Gesamte Lektionen:** 40
+- **Vokabel-Lektionen:** 15 (mit Wiederholung)
+- **Konversations-Lektionen:** 15
+- **Grammatik-Lektionen:** 2
+- **Wiederholungs-Lektionen:** 6
+- **Kultur-Lektionen:** 1
+- **Test-Lektionen:** 1
+- **Durchschnittliche Zeit pro Tag:** ~38 Minuten
+- **Gesamtzeit:** ~15 Stunden über 4 Wochen
+
+## Verwendung des Scripts
+
+```bash
+# 1. Erstelle zuerst die Sprache "Cebuano" oder "Bisaya" im System
+# 2. Notiere dir die languageId und deine ownerHashedId
+# 3. Führe das Script aus:
+
+node backend/scripts/create-bisaya-course.js <languageId> <ownerHashedId>
+
+# Beispiel:
+node backend/scripts/create-bisaya-course.js 1 abc123def456
+```
+
+Das Script erstellt automatisch:
+- Den Kurs mit allen 40 Lektionen
+- Wochen- und Tagesstruktur
+- Zeitvorgaben und Zielpunktzahlen
+- Wiederholungslogik
+- Kulturelle Notizen
+
+## Nächste Schritte nach Kurs-Erstellung
+
+1. **Vokabeln hinzufügen:**
+   - Erstelle Kapitel für jede Vokabel-Lektion
+   - Füge die entsprechenden Vokabeln hinzu
+   - Verknüpfe die Kapitel mit den Lektionen
+
+2. **Grammatik-Übungen erstellen:**
+   - Erstelle Grammatik-Übungen für Lektion 15 und 25
+   - Nutze verschiedene Übungstypen (transformation, multiple_choice)
+
+3. **Audio hinzufügen:**
+   - Füge Audio-URLs zu Konversations-Lektionen hinzu
+   - Verlinke zu YouTube-Videos oder eigenen Audio-Dateien
+
+4. **Kurs teilen:**
+   - Nutze den Share-Code, um den Kurs mit anderen zu teilen
+   - Oder mache den Kurs öffentlich
+
+## Lernstrategie
+
+### Täglich:
+1. **Vokabeln lernen** (20-25 Min)
+   - Nutze die Vokabeltrainer-Funktion
+   - Wiederhole bis 85% erreicht sind
+
+2. **Konversation üben** (15-20 Min)
+   - Höre Audio
+   - Sprich laut nach
+   - Übe mit Muttersprachlern (HelloTalk, Tandem)
+
+3. **Grammatik verstehen** (wenn vorhanden, 20-25 Min)
+   - Mache die Grammatik-Übungen
+   - Verstehe die Regeln
+
+### Wöchentlich:
+- Wiederholungslektion am Ende jeder Woche
+- Vokabeltest am Ende jeder Woche
+- Prüfe deinen Fortschritt
+
+### Am Ende:
+- Abschlussprüfung
+- Kulturelle Tipps lesen
+- Weiter üben mit Muttersprachlern!
+
+Viel Erfolg beim Lernen! 🇵🇭