Pin official public HTTP recordings and a fixed metadata/URI question. Preserve each delivery scope, accept equivalent explicit model labels without losing contradictions, and verify related grading regressions. This adds experiments only; production and complete defaults stay unchanged. Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com> Co-authored-by: Kaoru0822 <208281322+kaoru0822-kitauji@users.noreply.github.com>