Downloads videos from 1800+ platforms (YouTube, Bilibili, Twitter/X, TikTok, Vimeo, Instagram, etc.) and generates a complete resource package including video, audio, subtitles, and an AI summary. Supports actions such as summarize, download, transcribe, and extract video content, with outputs in MP4, MP3, VTT, TXT, and MD formats. Auto-installs uv, yt-dlp, and ffmpeg; Python dependencies are managed by uv.