Deluan 223efdf020 fix: bust song/disc artwork ids and disc thumbnails on cover changes
Song coverArt ids emitted to Subsonic clients embedded no timestamp for the
disc/album fallback paths (always `_0`), so clients that cache by coverArt id
kept stale art after an album cover upload or delete. Fold the song's
CoverArtUpdatedAt into DiscCoverArtID and AlbumCoverArtID; ids are unchanged
when no cover was ever uploaded.

The web UI disc-header thumbnails had the same gap: getDiscCoverArtUrl only
used the song's updatedAt. It now takes the record and picks the newest of
updatedAt/coverArtUpdatedAt, sharing the cache-key helper with getCoverArtUrl.
2026-07-17 22:47:13 -04:00
..