The incremental scan's orphan cleanup and RemoveFromLibrary deleted audio_files rows without first filling the playlist phantom columns, so a track removed from the library folder outside YellowJacket (or removed from the library) became a permanently empty playlist row that nothing could re-link — the same bug #183 fixed on the full-rescan and retire paths, on the two paths it missed. Add a scoped PreservePlaylistPhantomsForFiles and run it in the same transaction as the deletes on both paths. Closes #246