Add 3D-printable desk case for the VFD and a WEMOS D1 R1

Parametric OpenSCAD design: 15 degree bezel holding the display on M3
heat-set inserts, slides into the body; base carries the board with the
DC jack and USB reachable through the back. Includes STLs, previews and
collision checks.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -22,6 +22,7 @@ components/samsung_vfd/    the component (Python schema + C++)
 examples/samsung-vfd.yaml  full example device config
 examples/secrets.yaml.example
 docs/                      photos and the 20L203DA12 datasheet
+case/                      3D-printable desk case (OpenSCAD + STL), see case/README.md
 tools/gen_charmaps.py      regenerates components/samsung_vfd/charmaps.h
 ```