The server now keeps Vidu URL-based image2video requests on a valid default duration when callers omit duration, and it forwards MiniMax S2V reference images in the images[] shape expected by the deployed Hailuo adapter.
Constraint: The test environment currently validates provider behavior through popiartServer binary deploys rather than waiting for broader upstream adapter rollouts
Rejected: Keep the old shared 4-second default for all providers | breaks viduq3-turbo when duration is omitted
Rejected: Translate S2V references into subject_reference in popiartServer | the deployed Hailuo adapter already expects top-level images and performs its own mapping
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep provider-specific video defaults and reference-shape compatibility isolated in popiartServer unless upstream adapters are upgraded in lockstep
Tested: go test ./internal/server -run TestInferRouteKeyForModelRecognizesViduAsVideo|TestGenerate|TestResolve|TestSubmitMiniMaxVideoTask|TestSubmitImageToVideoTask|TestExecuteImageToImageJobUsesGenerationsPathForMiniMax|TestExecuteImageToVideoJob|TestResolveVideoReferencesSupportsImagesArray
Not-tested: Full PopiNewAPI unit suite from the local checkout
The server now keeps portable image ratio normalization, enforces documented Seedream size presets, routes MiniMax img2img through generations-style payloads, and submits Hailuo video variants through the video generations API with proper reference-image handling.
Constraint: The deployed test chain relies on popiartServer as the lowest-risk place to adapt provider-specific routing without broad newapi changes
Rejected: Expand newapi relay modes for every MiniMax image/video branch | larger blast radius than needed for the verified server-managed flows
Confidence: high
Scope-risk: moderate
Reversibility: clean
Directive: Keep MiniMax-specific media routing in popiartServer unless upstream newapi adapters are upgraded to the same contract
Tested: go test ./internal/server -run TestInferRouteKeyForModelRecognizesViduAsVideo|TestGenerate|TestResolve|TestSubmitMiniMaxVideoTask|TestExecuteImageToImageJobUsesGenerationsPathForMiniMax|TestExecuteImageToVideoJob|TestResolveVideoReferencesSupportsImagesArray
Not-tested: Full PopiNewAPI unit suite (blocked earlier by external module checksum drift in local checkout)