v0.5.0

Added

• TUI: filter within a tab. On the Queue, Playlists, Artists, and Albums tabs, press / to filter the loaded list live (case-insensitive substring). Enter keeps the narrowed list and returns to navigation; Esc clears it. The Search tab keeps its library-wide search.
• Filter by artist across tabs. The filter matches an artist-aware key, not just the visible text: on Albums the artist is shown (Artist — Album, or Various Artists for mixed albums) and matched; on Playlists, typing an artist surfaces every playlist that contains a track by them, even when the playlist name doesn't mention it.

Changed

• library albums now prints Artist — Album (and --json emits {"name","artist"} objects) so same-named or mixed albums are distinguishable.