历史废弃：路线三：统一数据集完整评测

Deprecated historical route-3 output generated before the clean official implementation switch. Do not use as formal result. Deprecated historical route-3 output generated before the clean official implementation switch. Do not use as formal result. 6352 native/manually cleaned articulated assets evaluated through the benchmark entry for SDF parse, mesh URI integrity, movable joints, bbox and sidecar signals.