Android Phase D: Project foundation, Room DB, Retrofit API, Hilt

- Android CLI Setup: initialized empty-activity app (AGP 9.0, Kotlin 2.3.20)
- Version catalog: Compose BOM 2026.03.01, Material 3, Hilt 2.60.1, Room 2.7.2,
  Retrofit 2.11.0, OkHttp 4.12.0, WorkManager 2.10.2, Kotlinx Serialization
- Room Database (v1): ListEntity, ItemEntity, OpLogEntity
- Room DAOs: ListDao, ItemDao, OpLogDao with LWW upsert queries
- Network layer: MitbringslApi Retrofit interface + DTOs + AuthInterceptor
- Dependency Injection: DatabaseModule, NetworkModule, RepositoryModule, HiltAndroidApp
- Build verification: assembleDebug & test green ✅

android/.gitignore

@@ -0,0 +1,17 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+*.jks
+*.keystore