feat(diary): enhance predefined activities management and socket event handling

- Added new API endpoints for managing predefined activities, including retrieval, creation, updating, merging, and deduplication.
- Updated socket event handling to improve the mapping of socket events to domain events, ensuring better integration with the diary service.
- Enhanced repository mappers to support detailed mapping of predefined activities and training statistics, including images and member participation data.
- Introduced new UI strings for managing predefined activities, improving user experience in the diary section.

android-app/.gradle/buildOutputCleanup/cache.properties

@@ -0,0 +1,2 @@
+#Thu Mar 05 14:01:17 CET 2026
+gradle.version=8.7

android-app/app/build.gradle.kts

@@ -0,0 +1,92 @@
+plugins {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+    id("org.jetbrains.kotlin.plugin.serialization")
+    id("org.jetbrains.kotlin.plugin.compose")
+}
+
+android {
+    namespace = "de.trainingstagebuch.app"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "de.trainingstagebuch.app"
+        minSdk = 26
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+
+    buildFeatures {
+        compose = true
+    }
+
+    packaging {
+        resources {
+            excludes += "/META-INF/{AL2.0,LGPL2.1}"
+        }
+    }
+}
+
+tasks.register<Exec>("checkI18nHardcodedUiStrings") {
+    workingDir = rootProject.projectDir
+    commandLine("bash", "scripts/check_no_hardcoded_ui_strings.sh")
+}
+
+tasks.named("preBuild").configure {
+    dependsOn("checkI18nHardcodedUiStrings")
+}
+
+dependencies {
+    val composeBom = platform("androidx.compose:compose-bom:2024.10.01")
+
+    implementation("androidx.core:core-ktx:1.13.1")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.8.7")
+    implementation("androidx.activity:activity-compose:1.9.3")
+    implementation(composeBom)
+    implementation("androidx.compose.ui:ui")
+    implementation("androidx.compose.ui:ui-graphics")
+    implementation("androidx.compose.ui:ui-tooling-preview")
+    implementation("androidx.compose.material3:material3")
+
+    implementation("androidx.navigation:navigation-compose:2.8.3")
+    implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.8.7")
+    implementation("androidx.lifecycle:lifecycle-viewmodel-compose:2.8.7")
+
+    implementation("androidx.datastore:datastore-preferences:1.1.1")
+
+    implementation("com.squareup.retrofit2:retrofit:2.11.0")
+    implementation("com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:1.0.0")
+    implementation("com.squareup.okhttp3:okhttp:4.12.0")
+    implementation("com.squareup.okhttp3:logging-interceptor:4.12.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.3")
+
+    testImplementation("junit:junit:4.13.2")
+
+    debugImplementation(composeBom)
+    debugImplementation("androidx.compose.ui:ui-tooling")
+    debugImplementation("androidx.compose.ui:ui-test-manifest")
+}

android-app/app/build/intermediates/annotation_processor_list/debug/javaPreCompileDebug/annotationProcessors.json

@@ -0,0 +1 @@
+{}

android-app/app/build/intermediates/annotation_processor_list/debugUnitTest/javaPreCompileDebugUnitTest/annotationProcessors.json

@@ -0,0 +1 @@
+{}

android-app/app/build/intermediates/apk_ide_redirect_file/debug/createDebugApkListingFileRedirect/redirect.txt

@@ -0,0 +1,2 @@
+#- File Locator -
+listingFile=../../../../outputs/apk/debug/output-metadata.json

android-app/app/build/intermediates/app_metadata/debug/writeDebugAppMetadata/app-metadata.properties

@@ -0,0 +1,2 @@
+appMetadataVersion=1.1
+androidGradlePluginVersion=8.5.2

android-app/app/build/intermediates/compatible_screen_manifest/debug/createDebugCompatibleScreenManifests/output-metadata.json

@@ -0,0 +1,10 @@
+{
+  "version": 3,
+  "artifactType": {
+    "type": "COMPATIBLE_SCREEN_MANIFEST",
+    "kind": "Directory"
+  },
+  "applicationId": "de.trainingstagebuch.app",
+  "variantName": "debug",
+  "elements": []
+}

android-app/app/build/intermediates/dex_number_of_buckets_file/debug/dexBuilderDebug/out

@@ -0,0 +1 @@
+8