v11.2.1

Changelog

• 07c9040 feat(tui): enhance slider with handle labels, gradient edges, and playhead markers
• 06aef38 feat: remove audio silence detection
• 8d0a0d7 feat(tui): add ms timestamps, fade-out transcript, help bar inside box
• 010cbf2 fix(tui): remove unused renderLeftPane and renderRightPane wrappers
• 7b77031 fix(tui): align help bar separator columns vertically
• e6294b3 fix(tui): omit .000 ms suffix when milliseconds are zero
• 55fd07d refactor(download): replace raw yt-dlp exec with go-ytdlp StderrFunc for trimmed downloads