Briefcraft Lab: original synthetic floorplan/model QA example

Completed in Godot 4.7.2. Actual GLB mesh import, world-space bounds, physics trimesh ray checks, GLB export, and independent receiving-side reimport.

Three fixtures: correct geometry; incorrect unit scale; four deliberate geometry/classification defects. All expected controls passed, with zero unexpected failures. The incorrect unit fixture gates opening checks instead of interpreting tiny geometry as clear doors/windows. One source dimension remains explicitly unresolved.

Inspect SOURCE.json, QA-RESULTS.json, verify_models.gd, models/ and exports/. Rerun using Godot --headless --path <this folder> --script verify_models.gd.

Original synthetic portfolio material. No employer model, customer plan, private user file or product trial used. This is not architectural certification, IFC/BIM validation, an accepted paid assignment, or evidence of revenue.
