docker-compose.yml mounts ./data/youtube on api+worker for an optional yt-dlp cookies.txt; .env.example documents YOUTUBE_COOKIES_PATH. Bumps the backend + webui submodules to the YTM search/download feature commits. (mcma-bootstrap stays untracked — separate repo.)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>