render-chatgpt-chat

# render-chatgpt-chat The free renderer for the **chatgpt-chat** video ad format — the "I just asked ChatGPT…" creative, where someone asks ChatGPT a question and the *streamed assistant answer is the punchline* (the brand surfacing as the natural response). Deterministic Playwright + ffmpeg assembly; no generative video of the UI, so the bubble text and streamed answer stay pixel-crisp. This is the **ChatGPT sibling of `render-imessage-chat`**. Reach for this one when ChatGPT is the more credible host for the answer; reach for iMessage when the punchline is a peer's reaction in a DM. The template recipe (DB) supplies the per-brand `thread` + `timeline` + `end_card` config and gates the paid music call (music bed → `create-music-elevenlabs`) to its own capability. ## What it renders One continuous take — never scene-by-scene (every reload flickers): 1. **User types** in the composer with the iOS keyboard up (`composer-type`). 2. **Send-tap is ONE beat** — the user bubble pops, the keyboard slides down, and the header right-cluster swaps (`personPlus/dottedCircle` → `edit/more`) all on the same `t`. Never sequence them across frames. 3. **One gray loading dot** holds ~500ms (never three — three reads as iMessage typing, wrong app), silently (no SFX on the dot). 4. **The assistant answer streams in word-by-word** (`stream-words`, ~7 wps) with a soft opacity ramp; the conversation auto-scrolls to keep it in view. 5. **Crossfade to a designed end card** (wordmark...