The `pi` story of examples/demo/enclosure_ui_mcp.py keeps the 0.6 flow and adds the rim
rounded in one pick (a tangent chain), "Pi 4" engraved in the floor in DejaVu Sans Bold, and a
PETG material defined in the design, with its mass in Properties, before the height change.
The 0.6 story stays as `pi-0.6` (it built demo/pi-case). The center rectangle now comes from
the Rectangle drop-down. The finished case is in the action matrix corpus as
demo/pi-case-0.8.
docs/screenshots/demo-0.8.gif (9.3 MB) and demo-0.8.mp4 (9.9 MB) replace the 0.6 files: 41 s
at 9x playback.
Co-authored-by: Claude Opus 5.5 <[email protected]>