This replaces the previous manual JSON file system with standard Drizzle migrations, enabling:
- Proper database schema migrations with timestamp-based versioning
- Batched migration for faster migration of large datasets
- Better data integrity with proper table schemas instead of JSON blobs
- Easier database upgrades and rollback capabilities
Migration changes:
- Todo table now uses individual columns with composite PK instead of JSON blob
- Share table removes unused download share data
- Session diff table moved from database table to file storage
- All migrations now use proper Drizzle format with per-folder layout
Users will see a one-time migration on next run that migrates existing JSON data to the new SQLite database.
Replaces custom migration system with drizzle-orm's built-in migrator, bundling migrations at build-time instead of runtime generation. This reduces bundle complexity and provides better integration with drizzle's migration tracking.