forked from 1b-agent/opencadstudio-upstream
The #1538 drawing's solids now draw every face: extrusion, sum and offset surfaces and summary-only intcurves are read, vertex blends are filled over their boundary, and the mesher closes boundaries fitted to a few thousandths, notched cylinders and torus bands. Fixes #1538 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>