- Implemented `getAppConfig` and `upsertAppConfig` functions in `config.ts` for managing application settings in the database.
- Updated `mod.ts` to export the new configuration functions.
- Refactored `ComicConfig.ts` to load and update comic watch paths using the new configuration functions.
- Modified `comic_watcher.ts` to accept paths as parameters for creating watchers.
- Created a new settings router in `settings.ts` for managing application settings via HTTP requests.
- Integrated the settings router into the main server in `server.ts`.
- Updated the settings management to use the new database-backed configuration.
- Removed legacy configuration management code from `configRW.ts`.
- Added integration tests for the settings router and error handling.
- Updated `vitest` configuration for testing.
- Cleaned up unused type definitions in `pnpm-lock.yaml`.
