Video Batch Runner

This is the production runner you reach for when creative decisions are already locked and you need to execute InfiniteTalk or Seedance 2.0 renders at scale. It validates normalized video requests, manages local manifests, polls hosted endpoints, and downloads finished files while preserving source basis and continuity across batches. The execution boundary is strict: it won't make creative or strategic calls, won't guess missing inputs, and stops cold if upstream assets or prompt plans aren't approved. Best fit for short-form vertical content when you're past ideation and into render management. The handoff discipline is solid, quality defaults lean high for realism, and it keeps internal request artifacts separated from final deliverables.