Convert a selected Kuaishou topic or raw material into a short-video production plan. Use when Codex needs to write hooks, scripts, voiceover, shot lists, editing instructions, image/video generation prompts, subtitles, QA checks, or a final cut checklist before publishing on Kuaishou.
Audio and media assets for HyperFrames compositions, produced by one shared audio engine (`scripts/audio.mjs`) — multi-provider TTS (HeyGen / ElevenLabs / Kokoro local), background music + sound effects (HeyGen audio-library retrieval by default, with local Lyria / MusicGen BGM generation and a bundled SFX library as the no-credential fallback), Whisper transcription, background removal, and caption authoring. Use for voiceover / TTS, BGM, SFX / sound effects, transcription, captions / subtitles / lyrics / karaoke / per-word styling, voice + provider selection, and music-mood prompting.
