Unmatch: found tracks in playlist discovery now have a red X button
to remove bad matches. Clears match data, sets back to Not Found,
persists in DB for mirrored playlists, and respects user choice on
re-discovery runs (won't re-match automatically).
Video naming: new path template in Settings with $artist, $title,
$artistletter, $year variables. Default unchanged ($artist/$title-video)
so existing Plex setups aren't affected.
slskd logs: Clean Search History automation skips when Soulseek is
not the active download source, eliminating connection error spam.