v1.5.7

New

• Track filter on Library and Context pages — press / to filter tracks by title, artist, or album in real-time. Enter keeps filtered view, Escape clears it. Queue integration preserved (fixes #43, thanks @dmnmsc; fixes #46, thanks @valkyrieglasc)
• Optimistic sidebar updates — creating or deleting a playlist updates the sidebar instantly without an API round-trip or delay (thanks @Villoh, PR #41)

Fixes

• Fixed app crash when opening album from artist page — DuplicateIds caused by uncancelled background workers on page navigation. Workers now cancelled on page removal (fixes #44, thanks @dmnmsc)
• Fixed like/unlike toggle always showing "Like" — likeStatus was stripped during track normalization and not updated after rating. Now preserved and updated in real-time (fixes #45, thanks @dmnmsc)
• Fixed album_art = false and progress_style = "line" config options being ignored (fixes #42, thanks @valkyrieglasc)
• Fixed theme.toml base color overrides (background, primary, etc.) not applying after Textual theme integration — user customizations now override the active theme (fixes #42)

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