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/build.gradle.kts

@@ -0,0 +1,9 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+  alias(libs.plugins.android.application) apply false
+  alias(libs.plugins.compose.compiler) apply false
+  alias(libs.plugins.hilt) apply false
+  alias(libs.plugins.kotlin.serialization) apply false
+  alias(libs.plugins.ksp) apply false
+  alias(libs.plugins.room) apply false
+}