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/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,8 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
+distributionSha256Sum=a17ddd85a26b6a7f5ddb71ff8b05fc5104c0202c6e64782429790c933686c806
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists