feat(android): add API client, tRPC bridge, and offline support
- Add Retrofit with kotlinx-serialization converter for tRPC endpoints
- Create TRPCApiService with type-safe wrappers for all procedures
- Implement AuthInterceptor for JWT injection from EncryptedSharedPreferences
- Add ErrorHandler with exponential backoff retry logic and ApiResult sealed class
- Create 11 serializable data models matching backend enums
- Add JSON file-based cache with TTL invalidation (CacheManager)
- Implement repositories: User, DarkWatch, VoicePrint, Alert, Subscription
- Add offline sync: PendingRequestQueue, OfflineWorker, SyncManager
- Create manual DI modules: NetworkModule, DatabaseModule, RepositoryModule
- Add WorkManager for background offline request processing
- Add ConnectivityManager-based network monitoring for auto-sync
- Configure build system with KSP for Room, kotlinx-serialization plugin
- Update build config with environment-specific API URLs
- Write 19 new unit tests for ErrorHandler, CacheManager, TRPCResponse, SyncManager
Michael Freno
3ccaeaa2e3