Add flexible play command with position flags

- Add -i/--now, -n/--next, -l/--last flags to play command:
  - 'play MUSIC' (default) adds to end of queue and plays
  - 'play -i MUSIC' inserts after current and skips to it
  - 'play -n MUSIC' inserts after current, doesn't skip
  - 'play -l MUSIC' adds to end of queue (default behavior)

- Add insert_after_current and track_at methods to Queue in daemon
- Update play command handler to handle position arguments
- Fix queue display to correctly show playing track (compare track_idx
  instead of display_idx with current_position)

1 files changed, 2 insertions, 0 deletions

diff --git a/TODO.md b/TODO.md
index 347a529..efcc440 100644
--- a/TODO.md
+++ b/TODO.md
@@ -34,6 +34,8 @@
 
 - [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.
 
+- [x] **Flexible play command** - Added `-i/--now`, `-n/--next`, `-l/--last` flags to play command: `play MUSIC` (default - add to end and play), `play -i MUSIC` (insert after current and skip to it), `play -n MUSIC` (insert after current, don't skip), `play -l MUSIC` (add to end of queue). Also fixed queue display to correctly show playing track.
+
 ## Potential Improvements
 
 - [ ] **Add error handling for audio playback** - Consider more robust error handling in the audio thread.