natreex 1f99fe0bdc Add database module with connection manager and schema initialization ...

- Introduced `DatabaseManager` for handling SQLite connections per user with WAL and foreign key support.
- Implemented `initialize_schema` to set up comprehensive database schema covering AI, books, characters, locations, series, and sync tracking.
- Added migration helpers for schema versioning and column updates.
- Structured database module into `connection.rs` and `schema.rs` for clearer organization.

2026-03-21 09:35:06 -04:00

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src

Add database module with connection manager and schema initialization

2026-03-21 09:35:06 -04:00