Full queue lane this time (farm TCC fix verified working, all six via
hunyuan3d_mlx). attach_model() swaps interactable primitives for fitted
GLBs; place_prop() for world set-pieces; primitive fallbacks kept.
Models are raw hunyuan output (~100MB total) — decimation pass later if
repo weight matters. Integration passing.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>