Enhance getFalukantUserOrFail and createParty methods in FalukantService to support transaction options

- Updated getFalukantUserOrFail to accept an options parameter for transaction handling.
- Refactored createParty to utilize transaction support, ensuring atomic operations for party creation and related financial transactions.
- Improved error handling for party creation, including checks for existing parties within a 24-hour window and validation of selected options.

PERFORMANCE_ANALYSIS.md

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+# Backend Performance-Analyse: Sell-Funktionen
+
+## Identifizierte Performance-Probleme
+
+### 1. **N+1 Query Problem in `sellAllProducts()`**
+
+**Problem:**
+Die Funktion `sellAllProducts()` macht für jedes Inventory-Item mehrere separate Datenbankabfragen:
+
+1. **Erste Schleife (Zeile 1702-1711):**
+   - `calcRegionalSellPrice()` → macht `TownProductWorth.findOne()` für jedes Item
+   - `getCumulativeTaxPercentWithExemptions()` → macht mehrere Queries pro Item:
+     - `FalukantCharacter.findOne()`
+     - `PoliticalOffice.findAll()` mit Includes
+     - Rekursive SQL-Query für Steuerberechnung
+   - `addSellItem()` → macht `Branch.findOne()` und `DaySell.findOne()`/`create()` für jedes Item
+
+2. **Zweite Schleife (Zeile 1714-1724):**
+   - `RegionData.findOne()` für jedes Item
+   - `getCumulativeTaxPercent()` → rekursive SQL-Query für jedes Item
+   - `calcRegionalSellPrice()` → erneut `TownProductWorth.findOne()` für jedes Item
+
+**Beispiel:** Bei 10 Items werden gemacht:
+- 10x `TownProductWorth.findOne()` (2x pro Item)
+- 10x `RegionData.findOne()`
+- 10x `getCumulativeTaxPercentWithExemptions()` (mit mehreren Queries)
+- 10x `getCumulativeTaxPercent()` (rekursive SQL)
+- 10x `addSellItem()` (mit 2 Queries pro Item)
+- = **~70+ Datenbankabfragen für 10 Items**
+
+### 2. **Ineffiziente `addSellItem()` Implementierung**
+
+**Problem:**
+- Wird für jedes Item einzeln aufgerufen
+- Macht `Branch.findOne()` für jedes Item (könnte gecacht werden)
+- `DaySell.findOne()` und `create()`/`update()` für jedes Item
+
+**Lösung:** Batch-Operation implementieren, die alle DaySell Einträge auf einmal verarbeitet.
+
+### 3. **Doppelte Berechnungen in `sellAllProducts()`**
+
+**Problem:**
+- Preis wird zweimal berechnet (Zeile 1705 und 1718)
+- Steuer wird zweimal berechnet (Zeile 1706 und 1717)
+- `calcRegionalSellPrice()` wird zweimal aufgerufen mit denselben Parametern
+
+### 4. **Fehlende Indizes**
+
+**Potenzielle fehlende Indizes:**
+- `falukant_data.town_product_worth(product_id, region_id)` - sollte unique sein
+- `falukant_data.inventory(stock_id, product_id, quality)` - für schnelle Lookups
+- `falukant_data.knowledge(character_id, product_id)` - für Knowledge-Lookups
+- `falukant_data.political_office(character_id)` - für Steuerbefreiungen
+
+### 5. **Ineffiziente `getCumulativeTaxPercentWithExemptions()`**
+
+**Problem:**
+- Lädt alle PoliticalOffices jedes Mal neu, auch wenn sich nichts geändert hat
+- Macht komplexe rekursive SQL-Query für jedes Item separat
+- Könnte gecacht werden (z.B. pro User+Region Kombination)
+
+## Empfohlene Optimierungen
+
+### 1. **Batch-Loading für `sellAllProducts()`**
+
+```javascript
+async sellAllProducts(hashedUserId, branchId) {
+    // ... existing code ...
+    
+    // Batch-Load alle benötigten Daten VOR den Schleifen
+    const regionIds = [...new Set(inventory.map(item => item.stock.branch.regionId))];
+    const productIds = [...new Set(inventory.map(item => item.productType.id))];
+    
+    // 1. Lade alle TownProductWorth Einträge auf einmal
+    const townWorths = await TownProductWorth.findAll({
+        where: {
+            productId: { [Op.in]: productIds },
+            regionId: { [Op.in]: regionIds }
+        }
+    });
+    const worthMap = new Map();
+    townWorths.forEach(tw => {
+        worthMap.set(`${tw.productId}-${tw.regionId}`, tw.worthPercent);
+    });
+    
+    // 2. Lade alle RegionData auf einmal
+    const regions = await RegionData.findAll({
+        where: { id: { [Op.in]: regionIds } }
+    });
+    const regionMap = new Map(regions.map(r => [r.id, r]));
+    
+    // 3. Berechne Steuern für alle Regionen auf einmal
+    const taxMap = new Map();
+    for (const regionId of regionIds) {
+        const tax = await getCumulativeTaxPercentWithExemptions(falukantUser.id, regionId);
+        taxMap.set(regionId, tax);
+    }
+    
+    // 4. Berechne Preise und Steuern in einer Schleife
+    const sellItems = [];
+    for (const item of inventory) {
+        const regionId = item.stock.branch.regionId;
+        const worthPercent = worthMap.get(`${item.productType.id}-${regionId}`) || 50;
+        const knowledgeVal = item.productType.knowledges[0]?.knowledge || 0;
+        const pricePerUnit = calcRegionalSellPrice(item.productType, knowledgeVal, regionId, worthPercent);
+        const cumulativeTax = taxMap.get(regionId);
+        // ... rest of calculation ...
+        sellItems.push({ branchId: item.stock.branch.id, productId: item.productType.id, quantity: item.quantity });
+    }
+    
+    // 5. Batch-Update DaySell Einträge
+    await this.addSellItemsBatch(sellItems);
+    
+    // ... rest of code ...
+}
+```
+
+### 2. **Batch-Operation für `addSellItem()`**
+
+```javascript
+async addSellItemsBatch(sellItems) {
+    // Gruppiere nach (regionId, productId, sellerId)
+    const grouped = new Map();
+    for (const item of sellItems) {
+        const branch = await Branch.findByPk(item.branchId);
+        if (!branch) continue;
+        
+        const key = `${branch.regionId}-${item.productId}-${item.sellerId}`;
+        if (!grouped.has(key)) {
+            grouped.set(key, {
+                regionId: branch.regionId,
+                productId: item.productId,
+                sellerId: item.sellerId,
+                quantity: 0
+            });
+        }
+        grouped.get(key).quantity += item.quantity;
+    }
+    
+    // Batch-Update oder Create
+    for (const [key, data] of grouped) {
+        const [daySell, created] = await DaySell.findOrCreate({
+            where: {
+                regionId: data.regionId,
+                productId: data.productId,
+                sellerId: data.sellerId
+            },
+            defaults: { quantity: data.quantity }
+        });
+        
+        if (!created) {
+            daySell.quantity += data.quantity;
+            await daySell.save();
+        }
+    }
+}
+```
+
+### 3. **Caching für `getCumulativeTaxPercentWithExemptions()`**
+
+```javascript
+// Cache für Steuerberechnungen (z.B. 5 Minuten)
+const taxCache = new Map();
+const CACHE_TTL = 5 * 60 * 1000; // 5 Minuten
+
+async function getCumulativeTaxPercentWithExemptions(userId, regionId) {
+    const cacheKey = `${userId}-${regionId}`;
+    const cached = taxCache.get(cacheKey);
+    if (cached && Date.now() - cached.timestamp < CACHE_TTL) {
+        return cached.value;
+    }
+    
+    // ... existing calculation ...
+    
+    taxCache.set(cacheKey, { value: tax, timestamp: Date.now() });
+    return tax;
+}
+```
+
+### 4. **Optimierte `calcRegionalSellPrice()`**
+
+```javascript
+async function calcRegionalSellPrice(product, knowledgeFactor, regionId, worthPercent = null) {
+    // Wenn worthPercent nicht übergeben wurde UND wir es nicht aus dem Cache haben,
+    // dann hole es aus der DB
+    if (worthPercent === null) {
+        const townWorth = await TownProductWorth.findOne({
+            where: { productId: product.id, regionId: regionId }
+        });
+        worthPercent = townWorth?.worthPercent || 50;
+    }
+    
+    // ... rest of calculation ...
+}
+```
+
+### 5. **Datenbank-Indizes hinzufügen**
+
+```sql
+-- Index für town_product_worth (sollte unique sein)
+CREATE UNIQUE INDEX IF NOT EXISTS idx_town_product_worth_product_region 
+ON falukant_data.town_product_worth(product_id, region_id);
+
+-- Index für inventory Lookups
+CREATE INDEX IF NOT EXISTS idx_inventory_stock_product_quality 
+ON falukant_data.inventory(stock_id, product_id, quality);
+
+-- Index für knowledge Lookups
+CREATE INDEX IF NOT EXISTS idx_knowledge_character_product 
+ON falukant_data.knowledge(character_id, product_id);
+
+-- Index für political_office Lookups
+CREATE INDEX IF NOT EXISTS idx_political_office_character 
+ON falukant_data.political_office(character_id);
+```
+
+## Geschätzter Performance-Gewinn
+
+- **Vorher:** ~70+ Queries für 10 Items
+- **Nachher:** ~15-20 Queries für 10 Items (Batch-Loading + Caching)
+- **Geschätzte Verbesserung:** 70-80% weniger Datenbankabfragen
+
+## Priorität
+
+1. **Hoch:** Batch-Loading für `sellAllProducts()` (größter Impact)
+2. **Hoch:** Batch-Operation für `addSellItem()`
+3. **Mittel:** Caching für Steuerberechnungen
+4. **Mittel:** Datenbank-Indizes
+5. **Niedrig:** Doppelte Berechnungen entfernen
+

SELL_OVERVIEW.md

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+# Übersicht: Sell-Funktionen und verwendete Models/Tabellen
+
+## Sell-Funktionen in `falukantService.js`
+
+### 1. `sellProduct(hashedUserId, branchId, productId, quality, quantity)`
+Verkauft ein einzelnes Produkt mit bestimmter Qualität.
+
+**Ablauf:**
+1. Lädt User, Branch, Character, Stock
+2. Lädt Inventory mit ProductType und Knowledge
+3. Berechnet Preis pro Einheit mit `calcRegionalSellPrice()`
+4. Berechnet kumulative Steuer mit politischen Befreiungen
+5. Passt Preis an (Inflation basierend auf Steuer)
+6. Berechnet Revenue, Tax, Net
+7. Aktualisiert Geld für Verkäufer und Treasury
+8. Entfernt verkaufte Items aus Inventory
+9. Erstellt/aktualisiert DaySell Eintrag
+10. Sendet Socket-Notifications
+
+**Verwendete Models/Tabellen:**
+- `FalukantUser` (`falukant_data.falukant_user`)
+- `Branch` (`falukant_data.branch`)
+- `FalukantCharacter` (`falukant_data.character`)
+- `FalukantStock` (`falukant_data.stock`)
+- `Inventory` (`falukant_data.inventory`)
+- `ProductType` (`falukant_type.product`)
+- `Knowledge` (`falukant_data.knowledge`)
+- `TownProductWorth` (`falukant_data.town_product_worth`)
+- `RegionData` (`falukant_data.region`)
+- `RegionType` (`falukant_type.region`)
+- `PoliticalOffice` (`falukant_data.political_office`)
+- `PoliticalOfficeType` (`falukant_type.political_office_type`)
+- `DaySell` (`falukant_log.day_sell`)
+- `MoneyFlow` (via `updateFalukantUserMoney`)
+
+### 2. `sellAllProducts(hashedUserId, branchId)`
+Verkauft alle Produkte eines Branches.
+
+**Ablauf:**
+1. Lädt User, Branch mit Stocks
+2. Lädt alle Inventory Items mit ProductType, Knowledge, Stock, Branch
+3. Für jedes Item:
+   - Berechnet Preis pro Einheit
+   - Berechnet kumulative Steuer
+   - Passt Preis an
+   - Erstellt/aktualisiert DaySell Eintrag
+4. Berechnet Gesamt-Tax pro Region
+5. Aktualisiert Geld für Verkäufer und Treasury
+6. Löscht alle Inventory Items
+7. Sendet Socket-Notifications
+
+**Verwendete Models/Tabellen:**
+- `FalukantUser` (`falukant_data.falukant_user`)
+- `Branch` (`falukant_data.branch`)
+- `FalukantStock` (`falukant_data.stock`)
+- `FalukantStockType` (`falukant_type.stock`)
+- `FalukantCharacter` (`falukant_data.character`)
+- `Inventory` (`falukant_data.inventory`)
+- `ProductType` (`falukant_type.product`)
+- `Knowledge` (`falukant_data.knowledge`)
+- `TownProductWorth` (`falukant_data.town_product_worth`)
+- `RegionData` (`falukant_data.region`)
+- `RegionType` (`falukant_type.region`)
+- `PoliticalOffice` (`falukant_data.political_office`)
+- `PoliticalOfficeType` (`falukant_type.political_office_type`)
+- `DaySell` (`falukant_log.day_sell`)
+- `MoneyFlow` (via `updateFalukantUserMoney`)
+
+### 3. `addSellItem(branchId, userId, productId, quantity)`
+Erstellt oder aktualisiert einen DaySell Eintrag für einen Verkauf.
+
+**Ablauf:**
+1. Lädt Branch
+2. Sucht nach existierendem DaySell Eintrag
+3. Erstellt neuen oder aktualisiert existierenden Eintrag
+
+**Verwendete Models/Tabellen:**
+- `Branch` (`falukant_data.branch`)
+- `DaySell` (`falukant_log.day_sell`)
+
+## Hilfsfunktionen
+
+### `calcRegionalSellPrice(product, knowledgeFactor, regionId, worthPercent = null)`
+Berechnet den Verkaufspreis eines Produkts basierend auf:
+- Basispreis (`product.sellCost`)
+- Regionalem Worth-Percent (`town_product_worth.worth_percent`)
+- Knowledge-Faktor (0-100)
+
+**Verwendete Models/Tabellen:**
+- `ProductType` (`falukant_type.product`)
+- `TownProductWorth` (`falukant_data.town_product_worth`)
+
+### `getCumulativeTaxPercent(regionId)`
+Berechnet die kumulative Steuer für eine Region und alle Vorfahren (rekursiv).
+
+**SQL Query:**
+```sql
+WITH RECURSIVE ancestors AS (
+    SELECT id, parent_id, tax_percent
+    FROM falukant_data.region r
+    WHERE id = :id
+  UNION ALL
+    SELECT reg.id, reg.parent_id, reg.tax_percent
+    FROM falukant_data.region reg
+    JOIN ancestors a ON reg.id = a.parent_id
+)
+SELECT COALESCE(SUM(tax_percent),0) AS total FROM ancestors;
+```
+
+**Verwendete Tabellen:**
+- `falukant_data.region`
+
+### `getCumulativeTaxPercentWithExemptions(userId, regionId)`
+Berechnet die kumulative Steuer mit politischen Befreiungen.
+
+**Ablauf:**
+1. Lädt Character des Users
+2. Lädt alle PoliticalOffices des Characters
+3. Bestimmt befreite Region-Typen basierend auf Ämtern
+4. Berechnet kumulative Steuer, aber schließt befreite Region-Typen aus
+
+**SQL Query:**
+```sql
+WITH RECURSIVE ancestors AS (
+    SELECT r.id, r.parent_id, r.tax_percent, rt.label_tr as region_type
+    FROM falukant_data.region r
+    JOIN falukant_type.region rt ON rt.id = r.region_type_id
+    WHERE r.id = :id
+  UNION ALL
+    SELECT reg.id, reg.parent_id, reg.tax_percent, rt2.label_tr
+    FROM falukant_data.region reg
+    JOIN falukant_type.region rt2 ON rt2.id = reg.region_type_id
+    JOIN ancestors a ON reg.id = a.parent_id
+)
+SELECT COALESCE(SUM(CASE WHEN ARRAY[...] && ARRAY[region_type]::text[] THEN 0 ELSE tax_percent END),0) AS total FROM ancestors;
+```
+
+**Verwendete Models/Tabellen:**
+- `FalukantCharacter` (`falukant_data.character`)
+- `PoliticalOffice` (`falukant_data.political_office`)
+- `PoliticalOfficeType` (`falukant_type.political_office_type`)
+- `RegionData` (`falukant_data.region`)
+- `RegionType` (`falukant_type.region`)
+
+**Politische Steuerbefreiungen:**
+```javascript
+const POLITICAL_TAX_EXEMPTIONS = {
+    'council': ['city'],
+    'taxman': ['city', 'county'],
+    'treasurerer': ['city', 'county', 'shire'],
+    'super-state-administrator': ['city', 'county', 'shire', 'markgrave', 'duchy'],
+    'chancellor': ['city','county','shire','markgrave','duchy'] // = alle Typen
+};
+```
+
+## Model-Definitionen
+
+### Inventory (`falukant_data.inventory`)
+```javascript
+// backend/models/falukant/data/inventory.js
+- id
+- stockId (FK zu falukant_data.stock)
+- productId (FK zu falukant_type.product)
+- quantity
+- quality
+- producedAt
+```
+
+### DaySell (`falukant_log.day_sell`)
+```javascript
+// backend/models/falukant/log/daysell.js
+- id
+- regionId (FK zu falukant_data.region)
+- productId (FK zu falukant_type.product)
+- sellerId (FK zu falukant_data.falukant_user)
+- quantity
+- createdAt
+- updatedAt
+```
+
+### TownProductWorth (`falukant_data.town_product_worth`)
+```javascript
+// backend/models/falukant/data/town_product_worth.js
+- id
+- productId (FK zu falukant_type.product)
+- regionId (FK zu falukant_data.region)
+- worthPercent (0-100)
+```
+
+### Knowledge (`falukant_data.knowledge`)
+```javascript
+// backend/models/falukant/data/product_knowledge.js
+- id
+- productId (FK zu falukant_type.product)
+- characterId (FK zu falukant_data.character)
+- knowledge (0-99)
+```
+
+## Wichtige SQL-Queries
+
+### 1. Inventory mit ProductType und Knowledge laden
+```javascript
+Inventory.findAll({
+    where: { quality },
+    include: [
+        {
+            model: ProductType,
+            as: 'productType',
+            required: true,
+            where: { id: productId },
+            include: [
+                {
+                    model: Knowledge,
+                    as: 'knowledges',
+                    required: false,
+                    where: { characterId: character.id }
+                }
+            ]
+        }
+    ]
+})
+```
+
+### 2. Kumulative Steuer mit Befreiungen berechnen
+Siehe `getCumulativeTaxPercentWithExemptions()` oben.
+
+## Preisberechnung
+
+### Formel für `calcRegionalSellPrice`:
+1. Basispreis = `product.sellCost * (worthPercent / 100)`
+2. Min = `basePrice * 0.6`
+3. Max = `basePrice`
+4. Preis = `min + (max - min) * (knowledgeFactor / 100)`
+
+### Steueranpassung:
+1. `inflationFactor = cumulativeTax >= 100 ? 1 : (1 / (1 - cumulativeTax / 100))`
+2. `adjustedPricePerUnit = pricePerUnit * inflationFactor`
+3. `revenue = quantity * adjustedPricePerUnit`
+4. `taxValue = revenue * cumulativeTax / 100`
+5. `net = revenue - taxValue`
+
+## Vollständige Code-Snippets
+
+### `calcRegionalSellPrice()`
+```javascript
+async function calcRegionalSellPrice(product, knowledgeFactor, regionId, worthPercent = null) {
+    if (worthPercent === null) {
+        const townWorth = await TownProductWorth.findOne({
+            where: { productId: product.id, regionId: regionId }
+        });
+        worthPercent = townWorth?.worthPercent || 50; // Default 50% wenn nicht gefunden
+    }
+    
+    // Basispreis basierend auf regionalem worthPercent
+    const basePrice = product.sellCost * (worthPercent / 100);
+    
+    // Dann Knowledge-Faktor anwenden
+    const min = basePrice * 0.6;
+    const max = basePrice;
+    return min + (max - min) * (knowledgeFactor / 100);
+}
+```
+
+### `getCumulativeTaxPercent()`
+```javascript
+async function getCumulativeTaxPercent(regionId) {
+    if (!regionId) return 0;
+    const rows = await sequelize.query(
+        `WITH RECURSIVE ancestors AS (
+            SELECT id, parent_id, tax_percent
+            FROM falukant_data.region r
+            WHERE id = :id
+          UNION ALL
+            SELECT reg.id, reg.parent_id, reg.tax_percent
+            FROM falukant_data.region reg
+            JOIN ancestors a ON reg.id = a.parent_id
+        )
+        SELECT COALESCE(SUM(tax_percent),0) AS total FROM ancestors;`,
+        {
+            replacements: { id: regionId },
+            type: sequelize.QueryTypes.SELECT
+        }
+    );
+    const val = rows?.[0]?.total ?? 0;
+    return parseFloat(val) || 0;
+}
+```
+
+### `getCumulativeTaxPercentWithExemptions()` (vereinfacht)
+```javascript
+async function getCumulativeTaxPercentWithExemptions(userId, regionId) {
+    if (!regionId) return 0;
+    
+    // Character finden
+    const character = await FalukantCharacter.findOne({
+        where: { userId },
+        attributes: ['id']
+    });
+    if (!character) return 0;
+    
+    // Politische Ämter laden
+    const offices = await PoliticalOffice.findAll({
+        where: { characterId: character.id },
+        include: [
+            { model: PoliticalOfficeType, as: 'type', attributes: ['name'] },
+            {
+                model: RegionData,
+                as: 'region',
+                include: [{
+                    model: RegionType,
+                    as: 'regionType',
+                    attributes: ['labelTr']
+                }]
+            }
+        ]
+    });
+
+    // Befreite Region-Typen bestimmen
+    const exemptTypes = new Set();
+    let hasChancellor = false;
+    for (const o of offices) {
+        const name = o.type?.name;
+        if (!name) continue;
+        if (name === 'chancellor') { hasChancellor = true; break; }
+        const allowed = POLITICAL_TAX_EXEMPTIONS[name];
+        if (allowed && Array.isArray(allowed)) {
+            for (const t of allowed) exemptTypes.add(t);
+        }
+    }
+
+    if (hasChancellor) return 0;
+
+    // SQL Query mit Befreiungen
+    const exemptTypesArray = Array.from(exemptTypes);
+    const exemptTypesString = exemptTypesArray.length > 0 
+        ? `ARRAY[${exemptTypesArray.map(t => `'${t.replace(/'/g, "''")}'`).join(',')}]`
+        : `ARRAY[]::text[]`;
+    
+    const rows = await sequelize.query(
+        `WITH RECURSIVE ancestors AS (
+            SELECT r.id, r.parent_id, r.tax_percent, rt.label_tr as region_type
+            FROM falukant_data.region r
+            JOIN falukant_type.region rt ON rt.id = r.region_type_id
+            WHERE r.id = :id
+          UNION ALL
+            SELECT reg.id, reg.parent_id, reg.tax_percent, rt2.label_tr
+            FROM falukant_data.region reg
+            JOIN falukant_type.region rt2 ON rt2.id = reg.region_type_id
+            JOIN ancestors a ON reg.id = a.parent_id
+        )
+        SELECT COALESCE(SUM(CASE WHEN ${exemptTypesString} && ARRAY[region_type]::text[] THEN 0 ELSE tax_percent END),0) AS total FROM ancestors;`,
+        {
+            replacements: { id: regionId },
+            type: sequelize.QueryTypes.SELECT
+        }
+    );
+    const val = rows?.[0]?.total ?? 0;
+    return parseFloat(val) || 0;
+}
+```
+
+### `sellProduct()` (Kern-Logik)
+```javascript
+async sellProduct(hashedUserId, branchId, productId, quality, quantity) {
+    const user = await getFalukantUserOrFail(hashedUserId);
+    const branch = await getBranchOrFail(user.id, branchId);
+    const character = await FalukantCharacter.findOne({ where: { userId: user.id } });
+    if (!character) throw new Error('No character found for user');
+    const stock = await FalukantStock.findOne({ where: { branchId: branch.id } });
+    if (!stock) throw new Error('Stock not found');
+    
+    // Inventory laden
+    const inventory = await Inventory.findAll({
+        where: { quality },
+        include: [
+            {
+                model: ProductType,
+                as: 'productType',
+                required: true,
+                where: { id: productId },
+                include: [
+                    {
+                        model: Knowledge,
+                        as: 'knowledges',
+                        required: false,
+                        where: { characterId: character.id }
+                    }
+                ]
+            }
+        ]
+    });
+    if (!inventory.length) throw new Error('No inventory found');
+    
+    const available = inventory.reduce((sum, i) => sum + i.quantity, 0);
+    if (available < quantity) throw new Error('Not enough inventory available');
+    
+    const item = inventory[0].productType;
+    const knowledgeVal = item.knowledges?.[0]?.knowledge || 0;
+    const pricePerUnit = await calcRegionalSellPrice(item, knowledgeVal, branch.regionId);
+
+    // Steuer berechnen
+    const cumulativeTax = await getCumulativeTaxPercentWithExemptions(user.id, branch.regionId);
+    const inflationFactor = cumulativeTax >= 100 ? 1 : (1 / (1 - cumulativeTax / 100));
+    const adjustedPricePerUnit = Math.round(pricePerUnit * inflationFactor * 100) / 100;
+    const revenue = quantity * adjustedPricePerUnit;
+
+    // Tax und Net berechnen
+    const taxValue = Math.round((revenue * cumulativeTax / 100) * 100) / 100;
+    const net = Math.round((revenue - taxValue) * 100) / 100;
+
+    // Geld aktualisieren
+    const moneyResult = await updateFalukantUserMoney(user.id, net, `Product sale (net)`, user.id);
+    if (!moneyResult.success) throw new Error('Failed to update money for seller');
+
+    // Steuer an Treasury buchen
+    const treasuryId = process.env.TREASURY_FALUKANT_USER_ID;
+    if (treasuryId && taxValue > 0) {
+        const taxResult = await updateFalukantUserMoney(parseInt(treasuryId, 10), taxValue, `Sales tax (${cumulativeTax}%)`, user.id);
+        if (!taxResult.success) throw new Error('Failed to update money for treasury');
+    }
+    
+    // Inventory aktualisieren
+    let remaining = quantity;
+    for (const inv of inventory) {
+        if (inv.quantity <= remaining) {
+            remaining -= inv.quantity;
+            await inv.destroy();
+        } else {
+            await inv.update({ quantity: inv.quantity - remaining });
+            remaining = 0;
+            break;
+        }
+    }
+    
+    // DaySell Eintrag erstellen/aktualisieren
+    await this.addSellItem(branchId, user.id, productId, quantity);
+    
+    // Notifications senden
+    notifyUser(user.user.hashedId, 'falukantUpdateStatus', {});
+    notifyUser(user.user.hashedId, 'falukantBranchUpdate', { branchId: branch.id });
+    return { success: true };
+}
+```
+
+### `addSellItem()`
+```javascript
+async addSellItem(branchId, userId, productId, quantity) {
+    const branch = await Branch.findOne({
+        where: { id: branchId },
+    });
+    const daySell = await DaySell.findOne({
+        where: {
+            regionId: branch.regionId,
+            productId: productId,
+            sellerId: userId,
+        }
+    });
+    if (daySell) {
+        daySell.quantity += quantity;
+        await daySell.save();
+    } else {
+        await DaySell.create({
+            regionId: branch.regionId,
+            productId: productId,
+            sellerId: userId,
+            quantity: quantity,
+        });
+    }
+}
+```
+
+## Wichtige Hinweise
+
+1. **Inventory wird nach Verkauf gelöscht/aktualisiert**: Items werden aus der Inventory entfernt oder die Menge reduziert.
+
+2. **DaySell wird aggregiert**: Wenn bereits ein DaySell Eintrag für Region/Product/Seller existiert, wird die Menge addiert.
+
+3. **Steuer wird an Treasury gebucht**: Wenn `TREASURY_FALUKANT_USER_ID` gesetzt ist, wird die Steuer an diesen User gebucht.
+
+4. **Socket-Notifications**: Nach jedem Verkauf werden `falukantUpdateStatus` und `falukantBranchUpdate` Events gesendet.
+
+5. **Politische Befreiungen**: Bestimmte politische Ämter befreien von Steuern in bestimmten Region-Typen. Chancellor befreit von allen Steuern.
+
+6. **Preis-Inflation**: Der Preis wird basierend auf der Steuer inflatiert, damit der Netto-Betrag für den Verkäufer gleich bleibt.
+
+## Tabellenübersicht
+
+### `falukant_data.inventory`
+- `id` (PK)
+- `stock_id` (FK zu `falukant_data.stock`)
+- `product_id` (FK zu `falukant_type.product`)
+- `quantity` (INTEGER)
+- `quality` (INTEGER)
+- `produced_at` (DATE)
+
+### `falukant_log.sell` (DaySell)
+- `id` (PK)
+- `region_id` (FK zu `falukant_data.region`)
+- `product_id` (FK zu `falukant_type.product`)
+- `seller_id` (FK zu `falukant_data.falukant_user`)
+- `quantity` (INTEGER)
+- `sell_timestamp` (DATE)
+- **Unique Index**: `(seller_id, product_id, region_id)`
+
+### `falukant_data.town_product_worth`
+- `id` (PK)
+- `product_id` (FK zu `falukant_type.product`)
+- `region_id` (FK zu `falukant_data.region`)
+- `worth_percent` (INTEGER, 0-100)
+
+### `falukant_data.knowledge`
+- `id` (PK)
+- `product_id` (FK zu `falukant_type.product`)
+- `character_id` (FK zu `falukant_data.character`)
+- `knowledge` (INTEGER, 0-99)
+
+### `falukant_data.political_office`
+- `id` (PK)
+- `office_type_id` (FK zu `falukant_type.political_office_type`)
+- `character_id` (FK zu `falukant_data.character`)
+- `region_id` (FK zu `falukant_data.region`)
+- `created_at`, `updated_at`
+
+### `falukant_type.political_office_type`
+- `id` (PK)
+- `name` (STRING) - z.B. 'council', 'taxman', 'treasurerer', 'super-state-administrator', 'chancellor'
+- `seats_per_region` (INTEGER)
+- `region_type` (STRING)
+- `term_length` (INTEGER)
+
+### `falukant_data.region`
+- `id` (PK)
+- `name` (STRING)
+- `region_type_id` (FK zu `falukant_type.region`)
+- `parent_id` (FK zu `falukant_data.region`, nullable)
+- `map` (JSONB)
+- `tax_percent` (DECIMAL)
+
+### `falukant_type.region`
+- `id` (PK)
+- `label_tr` (STRING) - z.B. 'city', 'county', 'shire', 'markgrave', 'duchy'
+- `parent_id` (FK zu `falukant_type.region`, nullable)
+
+### `falukant_data.falukant_user`
+- `id` (PK)
+- `user_id` (FK zu `community.user`)
+- `money` (DECIMAL)
+- `credit_amount`, `today_credit_taken`, `credit_interest_rate`
+- `certificate`
+- `main_branch_region_id`
+- `last_nobility_advance_at`
+- `created_at`, `updated_at`
+
+### `falukant_data.character`
+- `id` (PK)
+- `user_id` (FK zu `falukant_data.falukant_user`)
+- `region_id` (FK zu `falukant_data.region`)
+- `first_name`, `last_name`
+- `birthdate`, `gender`, `health`
+- `title_of_nobility` (FK zu `falukant_type.title_of_nobility`)
+- `mood_id` (FK zu `falukant_type.mood`)
+- `created_at`, `updated_at`
+
+### `falukant_data.branch`
+- `id` (PK)
+- `branch_type_id` (FK zu `falukant_type.branch`)
+- `region_id` (FK zu `falukant_data.region`)
+- `falukant_user_id` (FK zu `falukant_data.falukant_user`)
+
+### `falukant_data.stock`
+- `id` (PK)
+- `branch_id` (FK zu `falukant_data.branch`)
+- `stock_type_id` (FK zu `falukant_type.stock`)
+- `quantity` (INTEGER)
+- `product_quality` (INTEGER, nullable)
+
+### `falukant_type.product`
+- `id` (PK)
+- `label_tr` (STRING, unique)
+- `category` (INTEGER)
+- `production_time` (INTEGER)
+- `sell_cost` (INTEGER)
+
+## Dateipfade
+
+- **Service**: `backend/services/falukantService.js`
+- **Models**:
+  - `backend/models/falukant/data/inventory.js`
+  - `backend/models/falukant/log/daysell.js`
+  - `backend/models/falukant/data/town_product_worth.js`
+  - `backend/models/falukant/data/product_knowledge.js`
+  - `backend/models/falukant/data/political_office.js`
+  - `backend/models/falukant/type/political_office_type.js`
+  - `backend/models/falukant/data/region.js`
+  - `backend/models/falukant/type/region.js`
+  - `backend/models/falukant/data/character.js`
+  - `backend/models/falukant/data/user.js`
+  - `backend/models/falukant/data/branch.js`
+  - `backend/models/falukant/data/stock.js`
+  - `backend/models/falukant/type/product.js`
+

backend/app.js

@@ -1,6 +1,7 @@
 import express from 'express';
 import path from 'path';
 import { fileURLToPath } from 'url';
+import crypto from 'crypto';
 import chatRouter from './routers/chatRouter.js';
 import authRouter from './routers/authRouter.js';
 import navigationRouter from './routers/navigationRouter.js';
@@ -25,6 +26,25 @@ const __dirname = path.dirname(__filename);
 
 const app = express();
 
+// Request-Timing (aktivierbar per ENV)
+// - LOG_SLOW_REQ_MS=200: Logge Requests, die länger dauern als X ms (Default 500)
+// - LOG_ALL_REQ=1: Logge alle Requests
+const LOG_ALL_REQ = process.env.LOG_ALL_REQ === '1';
+const LOG_SLOW_REQ_MS = Number.parseInt(process.env.LOG_SLOW_REQ_MS || '500', 10);
+app.use((req, res, next) => {
+  const reqId = req.headers['x-request-id'] || (crypto.randomUUID ? crypto.randomUUID() : crypto.randomBytes(8).toString('hex'));
+  req.reqId = reqId;
+  res.setHeader('x-request-id', reqId);
+  const t0 = Date.now();
+  res.on('finish', () => {
+    const ms = Date.now() - t0;
+    if (LOG_ALL_REQ || ms >= LOG_SLOW_REQ_MS) {
+      console.log(`⏱️  REQ ${ms}ms ${res.statusCode} ${req.method} ${req.originalUrl} rid=${reqId}`);
+    }
+  });
+  next();
+});
+
 const corsOptions = {
   origin: ['http://localhost:3000', 'http://localhost:5173', 'http://127.0.0.1:3000', 'http://127.0.0.1:5173'], 
   methods: ['GET', 'HEAD', 'PUT', 'PATCH', 'POST', 'DELETE'],

backend/migrations/20251220000000-add-reputation-to-character.cjs

@@ -0,0 +1,79 @@
+"use strict";
+
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    // falukant_data.character.reputation (integer, default random 20..80)
+    // Wichtig: Schema explizit angeben
+    // Vorgehen:
+    // - Spalte anlegen (falls noch nicht vorhanden)
+    // - bestehende Zeilen initialisieren (random 20..80)
+    // - DEFAULT setzen (random 20..80)
+    // - NOT NULL + CHECK 0..100 erzwingen
+    await queryInterface.sequelize.query(`
+      DO $$
+      BEGIN
+        IF NOT EXISTS (
+          SELECT 1
+          FROM information_schema.columns
+          WHERE table_schema = 'falukant_data'
+            AND table_name = 'character'
+            AND column_name = 'reputation'
+        ) THEN
+          ALTER TABLE falukant_data."character"
+          ADD COLUMN reputation integer;
+        END IF;
+      END$$;
+    `);
+
+    // Backfill: nur NULLs initialisieren (damit bestehende Werte nicht überschrieben werden)
+    await queryInterface.sequelize.query(`
+      UPDATE falukant_data."character"
+      SET reputation = (floor(random()*61)+20)::int
+      WHERE reputation IS NULL;
+    `);
+
+    // DEFAULT + NOT NULL (nach Backfill)
+    await queryInterface.sequelize.query(`
+      ALTER TABLE falukant_data."character"
+      ALTER COLUMN reputation SET DEFAULT (floor(random()*61)+20)::int;
+    `);
+    await queryInterface.sequelize.query(`
+      ALTER TABLE falukant_data."character"
+      ALTER COLUMN reputation SET NOT NULL;
+    `);
+
+    // Enforce 0..100 at DB level (percent)
+    // (IF NOT EXISTS pattern, because deployments can be re-run)
+    await queryInterface.sequelize.query(`
+      DO $$
+      BEGIN
+        IF NOT EXISTS (
+          SELECT 1
+          FROM pg_constraint c
+          JOIN pg_class t ON t.oid = c.conrelid
+          JOIN pg_namespace n ON n.oid = t.relnamespace
+          WHERE c.conname = 'character_reputation_0_100_chk'
+            AND n.nspname = 'falukant_data'
+            AND t.relname = 'character'
+        ) THEN
+          ALTER TABLE falukant_data."character"
+          ADD CONSTRAINT character_reputation_0_100_chk
+          CHECK (reputation >= 0 AND reputation <= 100);
+        END IF;
+      END$$;
+    `);
+  },
+
+  async down(queryInterface, Sequelize) {
+    await queryInterface.sequelize.query(`
+      ALTER TABLE falukant_data."character"
+      DROP CONSTRAINT IF EXISTS character_reputation_0_100_chk;
+    `);
+    await queryInterface.sequelize.query(`
+      ALTER TABLE falukant_data."character"
+      DROP COLUMN IF EXISTS reputation;
+    `);
+  },
+};
+
+

backend/models/falukant/data/character.js

@@ -34,6 +34,18 @@ FalukantCharacter.init(
       type: DataTypes.INTEGER,
       allowNull: false,
       defaultValue: 1}
+    ,
+    reputation: {
+      type: DataTypes.INTEGER,
+      allowNull: false,
+      // Initialisierung: zufällig 20..80 (Prozent)
+      // DB-seitig per DEFAULT umgesetzt, damit es auch ohne App-Logic gilt.
+      defaultValue: sequelize.literal('(floor(random()*61)+20)'),
+      validate: {
+        min: 0,
+        max: 100
+      }
+    }
   },
   {
     sequelize,

backend/services/falukantService.js

@@ -72,9 +72,10 @@ function calcAge(birthdate) {
     return differenceInDays(now, b);
 }
 
-async function getFalukantUserOrFail(hashedId) {
+async function getFalukantUserOrFail(hashedId, options = {}) {
     const user = await FalukantUser.findOne({
-        include: [{ model: User, as: 'user', attributes: ['username', 'hashedId'], where: { hashedId } }]
+        include: [{ model: User, as: 'user', attributes: ['username', 'hashedId'], where: { hashedId } }],
+        transaction: options.transaction
     });
     if (!user) throw new Error('User not found');
     return user;
@@ -92,6 +93,14 @@ function calcSellPrice(product, knowledgeFactor = 0) {
     return min + (max - min) * (knowledgeFactor / 100);
 }
 
+// Synchron version für Batch-Operationen (ohne DB-Query)
+function calcRegionalSellPriceSync(product, knowledgeFactor, worthPercent = 50) {
+    const basePrice = product.sellCost * (worthPercent / 100);
+    const min = basePrice * 0.6;
+    const max = basePrice;
+    return min + (max - min) * (knowledgeFactor / 100);
+}
+
 async function calcRegionalSellPrice(product, knowledgeFactor, regionId, worthPercent = null) {
     // Wenn worthPercent nicht übergeben wurde, hole es aus der Datenbank
     if (worthPercent === null) {
@@ -147,9 +156,34 @@ async function calcRegionalSellPrice(product, knowledgeFactor, regionId, worthPe
     async function getCumulativeTaxPercentWithExemptions(userId, regionId) {
         if (!regionId) return 0;
         // fetch user's political offices (active) and their region types
-        const offices = await PoliticalOffice.findAll({
+        // PoliticalOffice hat keine userId Spalte, daher müssen wir zuerst den Character finden
+        const character = await FalukantCharacter.findOne({
             where: { userId },
-            include: [{ model: PoliticalOfficeType, as: 'type', attributes: ['name'] }, { model: RegionData, as: 'region', include: [{ model: RegionType, as: 'regionType', attributes: ['labelTr'] }] }]
+            attributes: ['id']
+        });
+        if (!character) {
+            // Wenn kein Character existiert, gibt es keine politischen Ämter
+            return 0;
+        }
+        
+        const offices = await PoliticalOffice.findAll({
+            where: { characterId: character.id },
+            include: [
+                {
+                    model: PoliticalOfficeType,
+                    as: 'type',
+                    attributes: ['name']
+                },
+                {
+                    model: RegionData,
+                    as: 'region',
+                    include: [{
+                        model: RegionType,
+                        as: 'regionType',
+                        attributes: ['labelTr']
+                    }]
+                }
+            ]
         });
 
         // build set of exempt region type labels from user's offices
@@ -169,21 +203,27 @@ async function calcRegionalSellPrice(product, knowledgeFactor, regionId, worthPe
         if (hasChancellor) return 0;
 
         // Now compute cumulative tax but exclude regions whose regionType.labelTr is in exemptTypes
+        // Konvertiere exemptTypes Set zu einem PostgreSQL-Array-String
+        const exemptTypesArray = Array.from(exemptTypes);
+        const exemptTypesString = exemptTypesArray.length > 0 
+            ? `ARRAY[${exemptTypesArray.map(t => `'${t.replace(/'/g, "''")}'`).join(',')}]`
+            : `ARRAY[]::text[]`;
+        
         const rows = await sequelize.query(
             `WITH RECURSIVE ancestors AS (
                 SELECT r.id, r.parent_id, r.tax_percent, rt.label_tr as region_type
                 FROM falukant_data.region r
-                JOIN falukant_type.region_type rt ON rt.id = r.region_type_id
+                JOIN falukant_type.region rt ON rt.id = r.region_type_id
                 WHERE r.id = :id
               UNION ALL
                 SELECT reg.id, reg.parent_id, reg.tax_percent, rt2.label_tr
                 FROM falukant_data.region reg
-                JOIN falukant_type.region_type rt2 ON rt2.id = reg.region_type_id
+                JOIN falukant_type.region rt2 ON rt2.id = reg.region_type_id
                 JOIN ancestors a ON reg.id = a.parent_id
             )
-            SELECT COALESCE(SUM(CASE WHEN :exempt_types::text[] && ARRAY[region_type] THEN 0 ELSE tax_percent END),0) AS total FROM ancestors;`,
+            SELECT COALESCE(SUM(CASE WHEN ${exemptTypesString} && ARRAY[region_type]::text[] THEN 0 ELSE tax_percent END),0) AS total FROM ancestors;`,
             {
-                replacements: { id: regionId, exempt_types: Array.from(exemptTypes) },
+                replacements: { id: regionId },
                 type: sequelize.QueryTypes.SELECT
             }
         );
@@ -333,7 +373,7 @@ class FalukantService extends BaseService {
                         { model: TitleOfNobility, as: 'nobleTitle', attributes: ['labelTr', 'id'] },
                         { model: CharacterTrait, as: 'traits', attributes: ['id', 'tr'] }
                     ],
-                    attributes: ['id', 'birthdate', 'gender', 'moodId', 'health']
+                    attributes: ['id', 'birthdate', 'gender', 'moodId', 'health', 'reputation']
                 },
                 {
                     model: UserHouse,
@@ -457,7 +497,7 @@ class FalukantService extends BaseService {
                 {
                     model: FalukantCharacter,
                     as: 'character',
-                    attributes: ['birthdate', 'health'],
+                    attributes: ['birthdate', 'health', 'reputation'],
                     include: [
                         {
                             model: Relationship,
@@ -1508,46 +1548,62 @@ class FalukantService extends BaseService {
     }
 
     async getInventory(hashedUserId, branchId) {
+        // PERFORMANCE: Diese Route war langsam wegen doppelter/verschachtelter Includes (Branch->Stocks->Region + Inventory->Stock->Branch->Region).
+        // Wir holen stattdessen genau die benötigten Felder in EINER aggregierenden SQL-Query.
         const u = await getFalukantUserOrFail(hashedUserId);
-        const f = branchId ? { id: branchId, falukantUserId: u.id } : { falukantUserId: u.id };
-        const br = await Branch.findAll({
-            where: f,
-            include: [
-                { model: FalukantStock, as: 'stocks', include: [{ model: FalukantStockType, as: 'stockType' }] },
-                { model: RegionData, as: 'region', include: [{ model: RegionType, as: 'regionType' }] }
-            ]
-        });
-        const stockIds = br.flatMap(b => b.stocks.map(s => s.id));
-        const inv = await Inventory.findAll({
-            where: { stockId: stockIds },
-            include: [
-                {
-                    model: FalukantStock,
-                    as: 'stock',
-                    include: [
-                        {
-                            model: Branch,
-                            as: 'branch',
-                            include: [{ model: RegionData, as: 'region', include: [{ model: RegionType, as: 'regionType' }] }]
-                        },
-                        { model: FalukantStockType, as: 'stockType' }
-                    ]
-                },
-                { model: ProductType, as: 'productType' }
-            ]
-        });
-        const grouped = inv.reduce((acc, i) => {
-            const r = i.stock.branch.region;
-            const k = `${r.id}-${i.productType.id}-${i.quality}`;
-            acc[k] = acc[k] || { region: r, product: i.productType, quality: i.quality, totalQuantity: 0 };
-            acc[k].totalQuantity += i.quantity;
-            return acc;
-        }, {});
-        return Object.values(grouped).sort((a, b) => {
-            if (a.region.id !== b.region.id) return a.region.id - b.region.id;
-            if (a.product.id !== b.product.id) return a.product.id - b.product.id;
-            return a.quality - b.quality;
-        });
+        const branchIdInt = branchId == null ? null : parseInt(branchId, 10);
+        if (branchId != null && Number.isNaN(branchIdInt)) {
+            throw new Error('Invalid branchId');
+        }
+
+        const rows = await sequelize.query(
+            `
+            SELECT
+              r.id        AS region_id,
+              r.name      AS region_name,
+              rt.id       AS region_type_id,
+              rt.label_tr AS region_type_label_tr,
+              p.id        AS product_id,
+              p.label_tr  AS product_label_tr,
+              p.sell_cost AS product_sell_cost,
+              i.quality   AS quality,
+              SUM(i.quantity)::int AS total_quantity
+            FROM falukant_data.inventory i
+            JOIN falukant_data.stock s ON s.id = i.stock_id
+            JOIN falukant_data.branch b ON b.id = s.branch_id
+            JOIN falukant_data.region r ON r.id = b.region_id
+            LEFT JOIN falukant_type.region rt ON rt.id = r.region_type_id
+            JOIN falukant_type.product p ON p.id = i.product_id
+            WHERE b.falukant_user_id = :falukantUserId
+              AND (:branchId::int IS NULL OR b.id = :branchId::int)
+            GROUP BY
+              r.id, r.name, rt.id, rt.label_tr,
+              p.id, p.label_tr, p.sell_cost,
+              i.quality
+            ORDER BY r.id, p.id, i.quality
+            `,
+            {
+                replacements: { falukantUserId: u.id, branchId: branchIdInt },
+                type: sequelize.QueryTypes.SELECT
+            }
+        );
+
+        return (rows || []).map(r => ({
+            region: {
+                id: r.region_id,
+                name: r.region_name,
+                regionType: r.region_type_id
+                    ? { id: r.region_type_id, labelTr: r.region_type_label_tr }
+                    : null
+            },
+            product: {
+                id: r.product_id,
+                labelTr: r.product_label_tr,
+                sellCost: r.product_sell_cost
+            },
+            quality: r.quality,
+            totalQuantity: r.total_quantity
+        }));
     }
 
     async sellProduct(hashedUserId, branchId, productId, quality, quantity) {
@@ -1624,96 +1680,148 @@ class FalukantService extends BaseService {
     }
 
     async sellAllProducts(hashedUserId, branchId) {
-        const falukantUser = await getFalukantUserOrFail(hashedUserId);
-        const branch = await Branch.findOne({
-            where: { id: branchId, falukantUserId: falukantUser.id },
-            include: [{ model: FalukantStock, as: 'stocks' }]
-        });
-        if (!branch) throw new Error('Branch not found');
-        const stockIds = branch.stocks.map(s => s.id);
-        const character = await FalukantCharacter.findOne({ where: { userId: falukantUser.id } });
-        if (!character) throw new Error('No character for user');
-        const inventory = await Inventory.findAll({
-            where: { stockId: stockIds },
-            include: [
-                {
-                    model: ProductType,
-                    as: 'productType',
-                    include: [
-                        {
-                            model: Knowledge,
-                            as: 'knowledges',
-                            required: false,
-                            where: {
-                                characterId: character.id
+        // Konsistenz-Garantie: Verkauf, DaySell-Log, Geldbuchung und Inventory-Löschung müssen atomar sein.
+        // Sonst kann es (wie beobachtet) zu "teilweise verkauft/gelöscht" kommen.
+        return await sequelize.transaction(async (t) => {
+            const falukantUser = await getFalukantUserOrFail(hashedUserId, { transaction: t });
+            const branch = await Branch.findOne({
+                where: { id: branchId, falukantUserId: falukantUser.id },
+                include: [{ model: FalukantStock, as: 'stocks' }],
+                transaction: t
+            });
+            if (!branch) throw new Error('Branch not found');
+            const stockIds = branch.stocks.map(s => s.id);
+            const character = await FalukantCharacter.findOne({ where: { userId: falukantUser.id }, transaction: t });
+            if (!character) throw new Error('No character for user');
+            const inventory = await Inventory.findAll({
+                where: { stockId: stockIds },
+                include: [
+                    {
+                        model: ProductType,
+                        as: 'productType',
+                        include: [
+                            {
+                                model: Knowledge,
+                                as: 'knowledges',
+                                required: false,
+                                where: {
+                                    characterId: character.id
+                                }
                             }
-                        }
-                    ]
+                        ]
+                    },
+                    {
+                        model: FalukantStock,
+                        as: 'stock',
+                        include: [
+                            {
+                                model: Branch,
+                                as: 'branch'
+                            },
+                            {
+                                model: FalukantStockType,
+                                as: 'stockType'
+                            }
+                        ]
+                    }
+                ],
+                transaction: t
+            });
+            if (!inventory.length) return { success: true, revenue: 0 };
+
+            // PERFORMANCE OPTIMIZATION: Batch-Load alle benötigten Daten
+            const regionIds = [...new Set(inventory.map(item => item.stock.branch.regionId))];
+            const productIds = [...new Set(inventory.map(item => item.productType.id))];
+
+            // 1. Batch-Load alle TownProductWorth Einträge
+            const townWorths = await TownProductWorth.findAll({
+                where: {
+                    productId: { [Op.in]: productIds },
+                    regionId: { [Op.in]: regionIds }
                 },
-                {
-                    model: FalukantStock,
-                    as: 'stock',
-                    include: [
-                        {
-                            model: Branch,
-                            as: 'branch'
-                        },
-                        {
-                            model: FalukantStockType,
-                            as: 'stockType'
-                        }
-                    ]
-                }
-            ]
+                transaction: t
+            });
+            const worthMap = new Map();
+            townWorths.forEach(tw => {
+                worthMap.set(`${tw.productId}-${tw.regionId}`, tw.worthPercent);
+            });
+
+            // 2/3. Batch-Berechne Steuern für alle Regionen
+            const taxMap = new Map();
+            const uniqueRegionIds = [...new Set(regionIds)];
+            for (const regionId of uniqueRegionIds) {
+                const tax = await getCumulativeTaxPercentWithExemptions(falukantUser.id, regionId);
+                taxMap.set(regionId, tax);
+            }
+
+            // 4. Berechne Preise, Steuern und Einnahmen in EINER Schleife
+            let total = 0;
+            let totalTax = 0;
+            const sellItems = [];
+
+            for (const item of inventory) {
+                const knowledgeVal = item.productType.knowledges[0]?.knowledge || 0;
+                const regionId = item.stock.branch.regionId;
+                const worthPercent = worthMap.get(`${item.productType.id}-${regionId}`) || 50;
+
+                const pricePerUnit = calcRegionalSellPriceSync(item.productType, knowledgeVal, worthPercent);
+
+                const cumulativeTax = taxMap.get(regionId);
+                const inflationFactor = cumulativeTax >= 100 ? 1 : (1 / (1 - cumulativeTax / 100));
+                const adjustedPricePerUnit = Math.round(pricePerUnit * inflationFactor * 100) / 100;
+                const itemRevenue = item.quantity * adjustedPricePerUnit;
+                const itemTax = Math.round((itemRevenue * cumulativeTax / 100) * 100) / 100;
+
+                total += itemRevenue;
+                totalTax += itemTax;
+
+                sellItems.push({
+                    branchId: item.stock.branch.id,
+                    productId: item.productType.id,
+                    quantity: item.quantity
+                });
+            }
+
+            const totalNet = Math.round((total - totalTax) * 100) / 100;
+
+            // 5. Batch-Update DaySell Einträge (innerhalb Transaktion)
+            await this.addSellItemsBatch(sellItems, falukantUser.id, t);
+
+            // 6. Inventory löschen (innerhalb Transaktion) und sicherstellen, dass alles weg ist
+            const inventoryIds = inventory.map(item => item.id).filter(Boolean);
+            const expected = inventoryIds.length;
+            const deleted = await Inventory.destroy({ where: { id: { [Op.in]: inventoryIds } }, transaction: t });
+            if (deleted !== expected) {
+                throw new Error(`Inventory delete mismatch: expected ${expected}, deleted ${deleted}`);
+            }
+
+            // 7. Geld buchen (innerhalb Transaktion)
+            const moneyResult = await updateFalukantUserMoney(
+                falukantUser.id,
+                totalNet,
+                'Sell all products (net)',
+                falukantUser.id,
+                t
+            );
+            if (!moneyResult.success) throw new Error('Failed to update money for seller');
+
+            const treasuryId = process.env.TREASURY_FALUKANT_USER_ID;
+            if (treasuryId && totalTax > 0) {
+                const taxResult = await updateFalukantUserMoney(
+                    parseInt(treasuryId, 10),
+                    Math.round(totalTax * 100) / 100,
+                    `Sales tax (aggregate)`,
+                    falukantUser.id,
+                    t
+                );
+                if (!taxResult.success) throw new Error('Failed to update money for treasury');
+            }
+
+            console.log('[FalukantService.sellAllProducts] sold items', expected, 'deleted', deleted, 'revenue', total);
+            notifyUser(falukantUser.user.hashedId, 'falukantUpdateStatus', {});
+            notifyUser(falukantUser.user.hashedId, 'falukantBranchUpdate', { branchId });
+            return { success: true, revenue: total };
         });
-        if (!inventory.length) return { success: true, revenue: 0 };
-        let total = 0;
-        for (const item of inventory) {
-            const knowledgeVal = item.productType.knowledges[0]?.knowledge || 0;
-            const regionId = item.stock.branch.regionId;
-            const pricePerUnit = await calcRegionalSellPrice(item.productType, knowledgeVal, regionId);
-            const cumulativeTax = await getCumulativeTaxPercentWithExemptions(user.id, regionId);
-            const inflationFactor = cumulativeTax >= 100 ? 1 : (1 / (1 - cumulativeTax / 100));
-            const adjustedPricePerUnit = Math.round(pricePerUnit * inflationFactor * 100) / 100;
-            total += item.quantity * adjustedPricePerUnit;
-            await this.addSellItem(item.stock.branch.id, falukantUser.id, item.productType.id, item.quantity);
-        }
-        // compute tax per region (using cumulative tax per region) and aggregate
-        let totalTax = 0;
-        for (const item of inventory) {
-            const regionId = item.stock.branch.regionId;
-            const region = await RegionData.findOne({ where: { id: regionId } });
-            const cumulativeTax = await getCumulativeTaxPercent(regionId);
-            const pricePerUnit = await calcRegionalSellPrice(item.productType, item.productType.knowledges?.[0]?.knowledge || 0, regionId);
-            const inflationFactor = cumulativeTax >= 100 ? 1 : (1 / (1 - cumulativeTax / 100));
-            const adjustedPricePerUnit = Math.round(pricePerUnit * inflationFactor * 100) / 100;
-            const itemRevenue = item.quantity * adjustedPricePerUnit;
-            const itemTax = Math.round((itemRevenue * cumulativeTax / 100) * 100) / 100;
-            totalTax += itemTax;
-        }
-
-        const totalNet = Math.round((total - totalTax) * 100) / 100;
-
-        const moneyResult = await updateFalukantUserMoney(
-            falukantUser.id,
-            totalNet,
-            'Sell all products (net)',
-            falukantUser.id
-        );
-        if (!moneyResult.success) throw new Error('Failed to update money for seller');
-
-        const treasuryId = process.env.TREASURY_FALUKANT_USER_ID;
-        if (treasuryId && totalTax > 0) {
-            const taxResult = await updateFalukantUserMoney(parseInt(treasuryId, 10), Math.round(totalTax * 100) / 100, `Sales tax (aggregate)`, falukantUser.id);
-            if (!taxResult.success) throw new Error('Failed to update money for treasury');
-        }
-        for (const item of inventory) {
-            await Inventory.destroy({ where: { id: item.id } });
-        }
-        console.log('[FalukantService.sellAllProducts] emitting events for user', falukantUser.user.hashedId, 'branch', branchId, 'revenue', total, 'items', inventory.length);
-        notifyUser(falukantUser.user.hashedId, 'falukantUpdateStatus', {});
-        notifyUser(falukantUser.user.hashedId, 'falukantBranchUpdate', { branchId });
-        return { success: true, revenue: total };
     }
 
     async addSellItem(branchId, userId, productId, quantity) {
@@ -1741,6 +1849,70 @@ class FalukantService extends BaseService {
         }
     }
 
+    async addSellItemsBatch(sellItems, userId, transaction = null) {
+        if (!sellItems || sellItems.length === 0) return;
+        
+        // Lade alle benötigten Branches auf einmal
+        const branchIds = [...new Set(sellItems.map(item => item.branchId))];
+        const branches = await Branch.findAll({
+            where: { id: { [Op.in]: branchIds } },
+            attributes: ['id', 'regionId'],
+            transaction: transaction || undefined
+        });
+        const branchMap = new Map(branches.map(b => [b.id, b]));
+        // WICHTIG: Wie bei addSellItem muss ein fehlender Branch ein harter Fehler sein,
+        // sonst entsteht ein Accounting-/Audit-Mismatch (Geld/Steuern werden gebucht, aber Sell-Logs fehlen).
+        const missingBranchIds = branchIds.filter(id => !branchMap.has(id));
+        if (missingBranchIds.length > 0) {
+            throw new Error(
+                `Branch not found for sell batch (missing branchIds: ${missingBranchIds.join(', ')})`
+            );
+        }
+
+        // Gruppiere nach (regionId, productId, sellerId)
+        const grouped = new Map();
+        for (const item of sellItems) {
+            const branch = branchMap.get(item.branchId);
+            // sollte durch missingBranchIds Check oben nie passieren, aber defensiv:
+            if (!branch) {
+                throw new Error(`Branch not found for sell batch (branchId: ${item.branchId})`);
+            }
+            
+            const key = `${branch.regionId}-${item.productId}-${userId}`;
+            if (!grouped.has(key)) {
+                grouped.set(key, {
+                    regionId: branch.regionId,
+                    productId: item.productId,
+                    sellerId: userId,
+                    quantity: 0
+                });
+            }
+            grouped.get(key).quantity += item.quantity;
+        }
+
+        // Batch-Update oder Create für alle gruppierten Einträge
+        const promises = [];
+        for (const [key, data] of grouped) {
+            promises.push(
+                DaySell.findOrCreate({
+                    where: {
+                        regionId: data.regionId,
+                        productId: data.productId,
+                        sellerId: data.sellerId
+                    },
+                    defaults: { quantity: data.quantity },
+                    transaction: transaction || undefined
+                }).then(([daySell, created]) => {
+                    if (!created) {
+                        daySell.quantity += data.quantity;
+                        return daySell.save({ transaction: transaction || undefined });
+                    }
+                })
+            );
+        }
+        await Promise.all(promises);
+    }
+
     // Return tax summary for a branch: total cumulative tax and breakdown per region (region -> parent chain)
     async getBranchTaxes(hashedUserId, branchId) {
         const user = await getFalukantUserOrFail(hashedUserId);
@@ -3110,70 +3282,124 @@ class FalukantService extends BaseService {
     }
 
     async createParty(hashedUserId, partyTypeId, musicId, banquetteId, nobilityIds = [], servantRatio) {
-        const falukantUser = await getFalukantUserOrFail(hashedUserId);
-        const since = new Date(Date.now() - 24 * 3600 * 1000);
-        const already = await Party.findOne({
-            where: {
-                falukantUserId: falukantUser.id,
+        // Reputation-Logik: Party steigert Reputation um 1..5 (bestes Fest 5, kleinstes 1).
+        // Wir leiten "Ausstattung" aus den Party-Kosten ab (linear zwischen min/max möglicher Konfiguration),
+        // und deckeln Reputation bei 100.
+        return await sequelize.transaction(async (t) => {
+            const falukantUser = await getFalukantUserOrFail(hashedUserId);
+            const since = new Date(Date.now() - 24 * 3600 * 1000);
+            const already = await Party.findOne({
+                where: {
+                    falukantUserId: falukantUser.id,
+                    partyTypeId,
+                    createdAt: { [Op.gte]: since },
+                },
+                attributes: ['id'],
+                transaction: t
+            });
+            if (already) {
+                throw new Error('Diese Party wurde bereits innerhalb der letzten 24 Stunden bestellt');
+            }
+
+            const [ptype, music, banquette] = await Promise.all([
+                PartyType.findByPk(partyTypeId, { transaction: t }),
+                MusicType.findByPk(musicId, { transaction: t }),
+                BanquetteType.findByPk(banquetteId, { transaction: t }),
+            ]);
+            if (!ptype || !music || !banquette) {
+                throw new Error('Ungültige Party-, Musik- oder Bankett-Auswahl');
+            }
+
+            const nobilities = nobilityIds && nobilityIds.length
+                ? await TitleOfNobility.findAll({ where: { id: { [Op.in]: nobilityIds } }, transaction: t })
+                : [];
+
+            // Prüfe, ob alle angegebenen IDs gefunden wurden
+            if (nobilityIds && nobilityIds.length > 0 && nobilities.length !== nobilityIds.length) {
+                throw new Error('Einige ausgewählte Adelstitel existieren nicht');
+            }
+
+            let cost = (ptype.cost || 0) + (music.cost || 0) + (banquette.cost || 0);
+            cost += (50 / servantRatio - 1) * 1000;
+            const nobilityCost = nobilities.reduce((sum, n) => sum + ((n.id ^ 5) * 1000), 0);
+            cost += nobilityCost;
+
+            if (Number(falukantUser.money) < cost) {
+                throw new Error('Nicht genügend Guthaben für diese Party');
+            }
+
+            // min/max mögliche Kosten für die Skalierung (nur für Reputation; Party-Preis bleibt wie berechnet)
+            const [allPartyTypes, allMusicTypes, allBanquetteTypes, allNobilityTitles] = await Promise.all([
+                PartyType.findAll({ attributes: ['cost'], transaction: t }),
+                MusicType.findAll({ attributes: ['cost'], transaction: t }),
+                BanquetteType.findAll({ attributes: ['cost'], transaction: t }),
+                TitleOfNobility.findAll({ attributes: ['id'], transaction: t }),
+            ]);
+            const minParty = allPartyTypes.length ? Math.min(...allPartyTypes.map(x => Number(x.cost || 0))) : 0;
+            const maxParty = allPartyTypes.length ? Math.max(...allPartyTypes.map(x => Number(x.cost || 0))) : 0;
+            const minMusic = allMusicTypes.length ? Math.min(...allMusicTypes.map(x => Number(x.cost || 0))) : 0;
+            const maxMusic = allMusicTypes.length ? Math.max(...allMusicTypes.map(x => Number(x.cost || 0))) : 0;
+            const minBanq = allBanquetteTypes.length ? Math.min(...allBanquetteTypes.map(x => Number(x.cost || 0))) : 0;
+            const maxBanq = allBanquetteTypes.length ? Math.max(...allBanquetteTypes.map(x => Number(x.cost || 0))) : 0;
+            const servantsMin = 0; // servantRatio=50 => (50/50 - 1)*1000 = 0
+            const servantsMax = (50 / 1 - 1) * 1000; // servantRatio=1 => 49k
+            const nobilityMax = (allNobilityTitles || []).reduce((sum, n) => sum + ((Number(n.id) ^ 5) * 1000), 0);
+
+            const minCostPossible = (minParty || 0) + (minMusic || 0) + (minBanq || 0) + servantsMin;
+            const maxCostPossible = (maxParty || 0) + (maxMusic || 0) + (maxBanq || 0) + servantsMax + (nobilityMax || 0);
+            const denom = Math.max(1, (maxCostPossible - minCostPossible));
+            const score = Math.min(1, Math.max(0, (cost - minCostPossible) / denom));
+            const reputationGain = 1 + Math.round(score * 4); // 1..5
+
+            const character = await FalukantCharacter.findOne({
+                where: { userId: falukantUser.id },
+                attributes: ['id', 'reputation'],
+                transaction: t
+            });
+            if (!character) throw new Error('No character for user');
+
+            // Geld abziehen
+            const moneyResult = await updateFalukantUserMoney(
+                falukantUser.id,
+                -cost,
+                'partyOrder',
+                falukantUser.id,
+                t
+            );
+            if (!moneyResult.success) {
+                throw new Error('Geld konnte nicht abgezogen werden');
+            }
+
+            const party = await Party.create({
                 partyTypeId,
-                createdAt: { [Op.gte]: since },
-            },
-            attributes: ['id']
+                falukantUserId: falukantUser.id,
+                musicTypeId: musicId,
+                banquetteTypeId: banquetteId,
+                servantRatio,
+                cost: cost
+            }, { transaction: t });
+
+            if (nobilities.length > 0) {
+                await party.addInvitedNobilities(nobilities, { transaction: t });
+            }
+
+            // Reputation erhöhen (0..100)
+            await character.update(
+                { reputation: Sequelize.literal(`LEAST(100, COALESCE(reputation,0) + ${reputationGain})`) },
+                { transaction: t }
+            );
+
+            const user = await User.findByPk(falukantUser.userId, { transaction: t });
+            notifyUser(user.hashedId, 'falukantPartyUpdate', {
+                partyId: party.id,
+                cost,
+                reputationGain,
+            });
+            // Statusbar kann sich damit ebenfalls aktualisieren
+            notifyUser(user.hashedId, 'falukantUpdateStatus', {});
+
+            return { success: true, reputationGain };
         });
-        if (already) {
-            throw new Error('Diese Party wurde bereits innerhalb der letzten 24 Stunden bestellt');
-        }
-        const [ptype, music, banquette] = await Promise.all([
-            PartyType.findByPk(partyTypeId),
-            MusicType.findByPk(musicId),
-            BanquetteType.findByPk(banquetteId),
-        ]);
-        if (!ptype || !music || !banquette) {
-            throw new Error('Ungültige Party-, Musik- oder Bankett-Auswahl');
-        }
-        const nobilities = nobilityIds && nobilityIds.length
-            ? await TitleOfNobility.findAll({ where: { id: { [Op.in]: nobilityIds } } })
-            : [];
-        
-        // Prüfe, ob alle angegebenen IDs gefunden wurden
-        if (nobilityIds && nobilityIds.length > 0 && nobilities.length !== nobilityIds.length) {
-            throw new Error('Einige ausgewählte Adelstitel existieren nicht');
-        }
-        
-        let cost = (ptype.cost || 0) + (music.cost || 0) + (banquette.cost || 0);
-        cost += (50 / servantRatio - 1) * 1000;
-        const nobilityCost = nobilities.reduce((sum, n) => sum + ((n.id ^ 5) * 1000), 0);
-        cost += nobilityCost;
-        if (Number(falukantUser.money) < cost) {
-            throw new Error('Nicht genügend Guthaben für diese Party');
-        }
-        const moneyResult = await updateFalukantUserMoney(
-            falukantUser.id,
-            -cost,
-            'partyOrder',
-            falukantUser.id
-        );
-        if (!moneyResult.success) {
-            throw new Error('Geld konnte nicht abgezogen werden');
-        }
-        const party = await Party.create({
-            partyTypeId,
-            falukantUserId: falukantUser.id,
-            musicTypeId: musicId,
-            banquetteTypeId: banquetteId,
-            servantRatio,
-            cost: cost
-        });
-        if (nobilities.length > 0) {
-            // Verwende die bereits geladenen Objekte
-            await party.addInvitedNobilities(nobilities);
-        }
-        const user = await User.findByPk(falukantUser.userId);
-        notifyUser(user.hashedId, 'falukantPartyUpdate', {
-            partyId: party.id,
-            cost,
-        });
-        return { 'success': true };
     }
 
     async getParties(hashedUserId) {

backend/utils/sequelize.js

@@ -3,6 +3,25 @@ import dotenv from 'dotenv';
 
 dotenv.config();
 
+// Optionales Performance-Logging (aktivierbar per ENV)
+// - SQL_BENCHMARK=1: Sequelize liefert Query-Timing (ms) an logger
+// - SQL_SLOW_MS=200: Logge nur Queries ab dieser Dauer (wenn SQL_LOG_ALL nicht gesetzt)
+// - SQL_LOG_ALL=1: Logge alle Queries (auch ohne benchmark)
+const SQL_BENCHMARK = process.env.SQL_BENCHMARK === '1';
+const SQL_LOG_ALL = process.env.SQL_LOG_ALL === '1';
+const SQL_SLOW_MS = Number.parseInt(process.env.SQL_SLOW_MS || '200', 10);
+const sqlLogger = (sql, timing) => {
+    // Sequelize ruft logging(sql) oder logging(sql, timing) abhängig von benchmark auf.
+    if (!SQL_BENCHMARK) {
+        if (SQL_LOG_ALL) console.log(sql);
+        return;
+    }
+    const ms = typeof timing === 'number' ? timing : 0;
+    if (SQL_LOG_ALL || ms >= SQL_SLOW_MS) {
+        console.log(`🛢️  SQL ${ms}ms: ${sql}`);
+    }
+};
+
 // Validiere Umgebungsvariablen
 const dbName = process.env.DB_NAME;
 const dbUser = process.env.DB_USER;
@@ -26,6 +45,8 @@ const sequelize = new Sequelize(dbName, dbUser, dbPass, {
         timestamps: false,
         underscored: true  // WICHTIG: Alle Datenbankfelder im snake_case Format
     },
+    benchmark: SQL_BENCHMARK,
+    logging: sqlLogger,
 });
 
 const createSchemas = async () => {
@@ -380,7 +401,7 @@ const updateSchema = async (models) => {
     console.log('✅ Datenbankschema aktualisiert');
 };
 
-async function updateFalukantUserMoney(falukantUserId, moneyChange, activity, changedBy = null) {
+async function updateFalukantUserMoney(falukantUserId, moneyChange, activity, changedBy = null, transaction = null) {
     try {
         const result = await sequelize.query(
             `SELECT falukant_data.update_money(
@@ -397,6 +418,7 @@ async function updateFalukantUserMoney(falukantUserId, moneyChange, activity, ch
                     changedBy,
                 },
                 type: sequelize.QueryTypes.SELECT,
+                transaction: transaction || undefined,
             }
         );
         return { 

frontend/src/components/falukant/SaleSection.vue

@@ -20,8 +20,10 @@
               <td>{{ item.quality }}</td>
               <td>{{ item.totalQuantity }}</td>
               <td>
-                <input type="number" v-model.number="item.sellQuantity" :min="1" :max="item.totalQuantity" />
-                <button @click="sellItem(index)">{{ $t('falukant.branch.sale.sellButton') }}</button>
+                <input type="number" v-model.number="item.sellQuantity" :min="1" :max="item.totalQuantity" :disabled="sellingItemIndex === index" />
+                <button @click="sellItem(index)" :disabled="sellingItemIndex === index || sellingAll">
+                  {{ sellingItemIndex === index ? $t('falukant.branch.sale.selling') : $t('falukant.branch.sale.sellButton') }}
+                </button>
               </td>
               <td>
                 <div v-if="item.betterPrices && item.betterPrices.length > 0" class="price-cities">
@@ -36,7 +38,12 @@
             </tr>
           </tbody>
         </table>
-        <button @click="sellAll">{{ $t('falukant.branch.sale.sellAllButton') }}</button>
+        <button @click="sellAll" :disabled="sellingAll || sellingItemIndex !== null">
+          {{ sellingAll ? $t('falukant.branch.sale.selling') : $t('falukant.branch.sale.sellAllButton') }}
+        </button>
+        <div v-if="sellAllStatus" class="sell-all-status" :class="sellAllStatus.type">
+          {{ sellAllStatus.message }}
+        </div>
       </div>
       <div v-else>
         <p>{{ $t('falukant.branch.sale.noInventory') }}</p>
@@ -183,6 +190,9 @@
     data() {
       return {
         inventory: [],
+        sellingItemIndex: null,
+        sellingAll: false,
+        sellAllStatus: null,
         transportForm: {
           sourceKey: null,
           vehicleTypeId: null,
@@ -251,13 +261,6 @@
           return new Date(a.eta).getTime() - new Date(b.eta).getTime();
         });
       },
-        speedLabel(value) {
-          const key = value == null ? 'unknown' : String(value);
-          const tKey = `falukant.branch.transport.speed.${key}`;
-          const translated = this.$t(tKey);
-          if (!translated || translated === tKey) return value;
-          return translated;
-        },
     },
     async mounted() {
       await this.loadInventory();
@@ -274,12 +277,22 @@
       }
     },
     methods: {
+      speedLabel(value) {
+        // Muss in methods liegen (Vue3): in computed wäre es ein Getter und keine aufrufbare Funktion.
+        const key = value == null ? 'unknown' : String(value);
+        const tKey = `falukant.branch.transport.speed.${key}`;
+        const translated = this.$t(tKey);
+        if (!translated || translated === tKey) return value;
+        return translated;
+      },
       async loadInventory() {
         try {
           const response = await apiClient.get(`/api/falukant/inventory/${this.branchId}`);
           this.inventory = response.data.map(item => ({
             ...item,
             sellQuantity: item.totalQuantity,
+            // Vue3: besserPrices direkt als Property setzen (statt this.$set)
+            betterPrices: Array.isArray(item.betterPrices) ? item.betterPrices : [],
           }));
           await this.loadPricesForInventory();
         } catch (error) {
@@ -300,10 +313,11 @@
                 currentPrice: currentPrice
               }
             });
-            this.$set(item, 'betterPrices', data || []);
+            // Vue3: direkte Zuweisung ist reaktiv
+            item.betterPrices = Array.isArray(data) ? data : [];
           } catch (error) {
             console.error(`Error loading prices for item ${itemKey}:`, error);
-            this.$set(item, 'betterPrices', []);
+            item.betterPrices = [];
           } finally {
             this.loadingPrices.delete(itemKey);
           }
@@ -320,23 +334,61 @@
           maximumFractionDigits: 2,
         }).format(price);
       },
-      sellItem(index) {
+      async sellItem(index) {
+        if (this.sellingItemIndex !== null || this.sellingAll) return;
+        
         const item = this.inventory[index];
         const quantityToSell = item.sellQuantity || item.totalQuantity;
-        apiClient.post(`/api/falukant/sell`, {
-          branchId: this.branchId,
-          productId: item.product.id,
-          quantity: quantityToSell,
-          quality: item.quality,
-        }).catch(() => {
+        this.sellingItemIndex = index;
+        
+        try {
+          await apiClient.post(`/api/falukant/sell`, {
+            branchId: this.branchId,
+            productId: item.product.id,
+            quantity: quantityToSell,
+            quality: item.quality,
+          });
+          // UI sofort freigeben (Label/Disabled zurücksetzen), dann Inventory refreshen
+          this.sellingItemIndex = null;
+          await this.loadInventory();
+        } catch (error) {
           alert(this.$t('falukant.branch.sale.sellError'));
-        });
+        } finally {
+          this.sellingItemIndex = null;
+        }
       },
-      sellAll() {
-        apiClient.post(`/api/falukant/sell/all`, { branchId: this.branchId })
-        .catch(() => {
-          alert(this.$t('falukant.branch.sale.sellAllError'));
-        });
+      async sellAll() {
+        if (this.sellingAll || this.sellingItemIndex !== null) return;
+        
+        this.sellingAll = true;
+        this.sellAllStatus = null;
+        
+        try {
+          const response = await apiClient.post(`/api/falukant/sell/all`, { branchId: this.branchId });
+          const revenue = response.data?.revenue || 0;
+          // UI sofort freigeben + Status setzen, danach Inventory refreshen
+          this.sellingAll = false;
+          this.sellAllStatus = {
+            type: 'success',
+            message: this.$t('falukant.branch.sale.sellAllSuccess', { revenue: this.formatMoney(revenue) })
+          };
+          // Inventory neu laden nach erfolgreichem Verkauf
+          await this.loadInventory();
+        } catch (error) {
+          // UI sofort freigeben + Fehlerstatus setzen
+          this.sellingAll = false;
+          this.sellAllStatus = {
+            type: 'error',
+            message: this.$t('falukant.branch.sale.sellAllError')
+          };
+        } finally {
+          // Falls noch nicht freigegeben (z.B. wenn ein unerwarteter Fehler vor Response passiert)
+          this.sellingAll = false;
+          // Status nach 5 Sekunden löschen
+          setTimeout(() => {
+            this.sellAllStatus = null;
+          }, 5000);
+        }
       },
       inventoryOptions() {
         return this.inventory.map((item, index) => ({
@@ -590,5 +642,19 @@
     color: #999;
     font-style: italic;
   }
+  .sell-all-status {
+    margin-top: 10px;
+    padding: 8px;
+    border-radius: 4px;
+  }
+  .sell-all-status.success {
+    background-color: #d4edda;
+    color: #155724;
+    border: 1px solid #c3e6cb;
+  }
+  .sell-all-status.error {
+    background-color: #f8d7da;
+    color: #721c24;
+    border: 1px solid #f5c6cb;
+  }
   </style>
-  

frontend/src/i18n/locales/de/falukant.json

@@ -260,6 +260,10 @@
                 "sell": "Verkauf",
                 "sellButton": "Verkaufen",
                 "sellAllButton": "Alles verkaufen",
+                "selling": "Verkauf läuft...",
+                "sellError": "Fehler beim Verkauf des Produkts.",
+                "sellAllError": "Fehler beim Verkauf aller Produkte.",
+                "sellAllSuccess": "Alle Produkte wurden erfolgreich verkauft. Einnahmen: {revenue}",
                 "transportTitle": "Transport anlegen",
                 "transportSource": "Artikel",
                 "transportSourcePlaceholder": "Artikel wählen",
@@ -738,7 +742,8 @@
         "reputation": {
             "title": "Reputation",
             "overview": {
-                "title": "Übersicht"
+                "title": "Übersicht",
+                "current": "Deine aktuelle Reputation"
             },
             "party": {
                 "title": "Feste",

frontend/src/i18n/locales/en/falukant.json

@@ -198,6 +198,16 @@
         "nobility": {
             "cooldown": "You can only advance again on {date}."
         },
+        "reputation": {
+            "title": "Reputation",
+            "overview": {
+                "title": "Overview",
+                "current": "Your current reputation"
+            },
+            "party": {
+                "title": "Parties"
+            }
+        },
         "branchProduction": {
             "storageAvailable": "Free storage"
         },

frontend/src/views/falukant/BranchView.vue

@@ -1014,12 +1014,15 @@ export default {
                 });
                 await this.loadVehicles();
                 this.closeRepairAllVehiclesDialog();
-                alert(this.$t('falukant.branch.transport.repairAllSuccess'));
+                // Statt JS-alert: Dialog schließen und MessageDialog anzeigen
+                this.$root.$refs.messageDialog?.open('tr:falukant.branch.transport.repairAllSuccess');
                 this.$refs.statusBar?.fetchStatus();
             } catch (error) {
                 console.error('Error repairing all vehicles:', error);
                 const errorMessage = error.response?.data?.message || this.$t('falukant.branch.transport.repairAllError');
-                alert(errorMessage);
+                // Bestätigungsdialog ebenfalls schließen und Fehler im MessageDialog anzeigen
+                this.closeRepairAllVehiclesDialog();
+                this.$root.$refs.messageDialog?.open(String(errorMessage), this.$t('error.title'));
             }
         },
 
@@ -1076,12 +1079,15 @@ export default {
                 await apiClient.post(`/api/falukant/vehicles/${this.repairVehicleDialog.vehicle.id}/repair`);
                 await this.loadVehicles();
                 this.closeRepairVehicleDialog();
-                alert(this.$t('falukant.branch.transport.repairSuccess'));
+                // Statt JS-alert: Dialog schließen und MessageDialog anzeigen
+                this.$root.$refs.messageDialog?.open('tr:falukant.branch.transport.repairSuccess');
                 this.$refs.statusBar?.fetchStatus();
             } catch (error) {
                 console.error('Error repairing vehicle:', error);
                 const errorMessage = error.response?.data?.message || this.$t('falukant.branch.transport.repairError');
-                alert(errorMessage);
+                // Bestätigungsdialog ebenfalls schließen und Fehler im MessageDialog anzeigen
+                this.closeRepairVehicleDialog();
+                this.$root.$refs.messageDialog?.open(String(errorMessage), this.$t('error.title'));
             }
         },
     },

frontend/src/views/falukant/ReputationView.vue

@@ -12,7 +12,10 @@
 
         <div class="tab-content">
             <div v-if="activeTab === 'overview'">
-                <p>Deine aktuelle Reputation: …</p>
+                <p>
+                    {{ $t('falukant.reputation.overview.current') }}:
+                    <strong>{{ reputationDisplay }}</strong>
+                </p>
             </div>
 
             <div v-else-if="activeTab === 'party'">
@@ -169,7 +172,8 @@ export default {
             selectedNobilityIds: [],
             servantRatio: 50,
             inProgressParties: [],
-            completedParties: []
+            completedParties: [],
+            reputation: null,
         }
     },
     methods: {
@@ -198,6 +202,15 @@ export default {
                 return partyDate <= twentyFourHoursAgo;
             });
         },
+        async loadReputation() {
+            try {
+                const { data } = await apiClient.get('/api/falukant/info');
+                this.reputation = data?.character?.reputation ?? null;
+            } catch (e) {
+                console.error('Failed to load reputation', e);
+                this.reputation = null;
+            }
+        },
         async loadNobilityTitles() {
             this.nobilityTitles = await apiClient.get('/api/falukant/nobility/titels').then(r => r.data)
         },
@@ -219,6 +232,10 @@ export default {
         }
     },
     computed: {
+        reputationDisplay() {
+            if (this.reputation == null) return '—';
+            return String(this.reputation);
+        },
         formattedCost() {
             const type = this.partyTypes.find(t => t.id === this.newPartyTypeId) || {};
             const music = this.musicTypes.find(m => m.id === this.musicId) || {};
@@ -245,6 +262,7 @@ export default {
         await this.loadPartyTypes();
         await this.loadNobilityTitles();
         await this.loadParties();
+        await this.loadReputation();
     }
 }
 </script>

package.json

@@ -12,7 +12,7 @@
     "devDependencies": {
         "concurrently": "^7.0.0",
         "nodemon": "^3.1.10",
-        "npm-run-all": "^4.1.5"
+        "npm-run-all2": "^5.0.0"
     },
     "dependencies": {
         "cors": "^2.8.5",