Add metadata extraction and display for folder playback

Extract ID3/metadata tags from audio files using symphonia and display
as 'INDEX. ARTIST - TITLE' format, falling back to filename. Only shows
the track number before any slash (e.g., '15' from '15/19').

1 files changed, 2 insertions, 0 deletions

diff --git a/TODO.md b/TODO.md
index 376841e..347a529 100644
--- a/TODO.md
+++ b/TODO.md
@@ -32,6 +32,8 @@
 
 - [x] **Album shuffle mode structure** - `ShuffleMode::Album` added to enum and queue logic (behaves like `All` until database ready).
 
+- [x] **Metadata extraction and display** - Extract ID3/metadata tags from audio files and display as "INDEX. ARTIST - TITLE", falls back to filename. Uses symphonia for metadata extraction.
+
 ## Potential Improvements
 
 - [ ] **Add error handling for audio playback** - Consider more robust error handling in the audio thread.