Use Python3.11+ with CadQuery2.6.1, ezdxf, matplotlib. Run cad/build_lab_v03.py from a working directory; it creates outputs/FN-LAB-DESK-v0.3 relative to cwd. Geometry parameters are in Python source; parameters.json is an exported summary, not a live configurator. guide/build_guide.py builds web content from generated data. cad/validate_lab_v03.py imports STEP parts and generates SVG thumbnails. These are review files; inspect README-TH.txt before RFQ. Web review: open guide/review.html; zone buttons simulate manual valves only. No hardware control.
