- New sync_history DB table tracks last 100 syncs with full cached context
- Records history for all sync types: Spotify, Tidal, Deezer, YouTube,
Beatport, ListenBrainz, Mirrored playlists, and Download Missing flows
- Sync History button on sync page with modal showing entries, source
filter tabs, stats badges, and pagination
- Re-sync button: server syncs expand card inline with live progress bar,
matched/failed counts, and cancel button; download syncs open download modal
- Re-syncs update the original entry (moves to top) instead of creating duplicates
- Delete button (x) on each entry with smooth remove animation
- Fix mirrored playlist source detection (youtube_mirrored_ matched youtube_)
- Fix broken server import thumbnails with URL validation
27a0cf8b81