M3U entries now resolve actual file paths from the DB instead of
synthesising a fake 'Artist - Title.mp3' string that no media server
could use. Adds optional M3U Entry Base Path setting (Downloads tab)
so servers requiring absolute paths (e.g. /mnt/music) can be supported.
- New POST /api/generate-playlist-m3u endpoint: per-artist batch DB
lookups with fuzzy title matching, prefixes entry_base_path when set
- autoSavePlaylistM3U and exportPlaylistAsM3U now call the new endpoint
- M3U Entry Base Path input added below Music Videos Dir in settings,
follows path-input-group pattern with Unlock button and autosave
751024ec64
