Before writing this I built a small working version against the real stack (Apify, ffmpeg, an image chain of Nano Banana Pro / Flux Kontext Max / Seedream via WaveSpeed, Kling v3 motion-control, on Trigger.dev, artifacts on Cloudflare R2, with an ArcFace identity gate, drift canary, versioned prompts and an audit ledger), so the numbers below are ones I hit rather than guesses, and I've flagged where I'm reasoning rather than reporting. I've built this orchestration shape before; here it is grounded in what the running system actually did, not in
