VDE-011 (Medium): write_stl / write_stl_ascii return bool
- Return false on file open failure, true on success
VDE-012 (Low): StlTrianglef for float precision
- New StlTrianglef struct with Vector3F/Point3F
- to_stl_trianglef() / from_stl_trianglef() conversions
VDE-013 (Medium): Per-module build options
- VDE_BUILD_CURVES/MESH/BREP/SPATIAL/BOOLEAN/COLLISION/SKETCH/SDF/CAPI
- All default ON, parent project can set OFF