- Add EV_PLAYLIST_TRACK_ADDED (22) — emitted when a track is
successfully added to a playlist
- If the currently-open playlist is the one modified, re-fetch it
so the track appears in the list immediately
- After creating a playlist, open it automatically so the user
lands in the new (empty) playlist view right away
- Sidebar already refreshes on create/delete; this ensures the
track list view also stays in sync
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>