65a6b32ebd
Four gaps found during user acceptance testing of the reference-video production workflow: - video_selector: expose aspect_ratio, duration, reference_image_path, reference_image_url, and image_url in schema so agents can discover these critical params. Auto-upload local images when the selected provider requires a URL. - _shared.py: add upload_image_fal() for local→URL image bridging via fal.ai storage. Fix upload_image_heygen() to try v2 presigned upload before falling back to fal.ai (old /v1/asset endpoint returns 404). - kling_video: call probe_output() so response includes output_path, duration_seconds, file_size_mb, video dimensions, and codec info.