- Add sqlx with PostgreSQL support for database operations
- Create DbService with artist/album upsert and listing methods
- Add database schema (14 tables) in containers/init.sql
- Add library controller (GET /api/library/artists, /albums, /stats)
- Merge sync_artist + ingest into single POST /api/sync endpoint
- Support configurable sync: download (bool), store (bool), album filter
- Connect to database at startup with graceful fallback
Alexander