hve-video-director 是做什么的？
End-to-end video production pipeline with design thinking. 6-phase orchestrator: Discovery (design thinking + context) → Storytelling (narrative + storyboard) → Capture (Chrome DevTools screenshots/screencasts, native desktop or region screen recording where supported, asciinema terminal recording) → Design (HyperFrames scene templates) → Production (HyperFrames composition) → Audio & Render (media-use audio engine for voiceover, music and SFX; reviewed captions; hyperframes render). Starts from