fix: guard against out-of-bounds tag in addToPlaylist context menu handler

Music/Views/TrackTableView.swift

@@ -373,6 +373,7 @@ struct TrackTableView: NSViewRepresentable {
         @objc func addToPlaylist(_ sender: NSMenuItem) {
             guard let tableView, tableView.clickedRow >= 0, tableView.clickedRow < tracks.count else { return }
             guard let config = parent.contextMenuConfig else { return }
+            guard sender.tag < config.playlists.count else { return }
             let track = tracks[tableView.clickedRow]
             let playlist = config.playlists[sender.tag]
             config.onAddToPlaylist(track, playlist)