- Update database schema to include `user_notes` column in `images` table.
- Implement `/meld/image-notes` POST endpoint to update notes.
- Enhance search logic to support global search in notes and `note:` prefix.
- Add user notes display and editing to `DetailedImageCard` and `ViewerInfoPanel`.
- Introduce settings to toggle user notes visibility in different views.
- Update documentation and types to reflect the new feature.