Validation scope: GLB binary contract, mesh audit, actual exported bounds, and Blender reimport renders.
The strict mesh audit flags one intentionally identical front/rear wheel primitive; it is repeated wheel detail, not overlapping duplicate body geometry.
Final shading is computed after triangulation and reduction; diagnostic comparisons are retained here.
No Forge runtime FPS or draw-call measurement was performed.
Earlier captures are retained as revision evidence and are not delivery renders.