- Strip yt-dlp's align:start position:0% cue settings from VTT files after both video download and subtitle-only download so CSS ::cue centers them - CC chip now shows already-downloaded langs (e.g. 'CC: en') directly from disk with a '+' button to add more — no YouTube call needed Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>