Vidu Video Generation Validation Pass criteria: command exits 0 and is generated. Output And Evidence - Save task IDs, polling responses, and final video URLs to . - Keep at least one end-to-end run log for troubleshooting. Prerequisites - Set in your environment (Beijing region key required). - Region: China Mainland (Beijing) only. Model, Endpoint URL, and API Key must belong to the same region. - Enable Vidu models in the Alibaba Cloud Model Studio console before first use. Critical model names Text-to-video - - - Image-to-video (first frame) - - - - Keyframe-to-video (first+last frame) -…