A mesh over the conversion budget is refused with its triangle (or vertex) count, the limit, and that only constant-section parts convert.
Refs #346
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
certify_nesting runs two planar booleans per pair of boundary loops, but
its work budget counted segments, so a mesh with many small holes could
trigger ~1M booleans. Refuse more than 50 loops (1225 pairs) with a
"too complex to convert" error and test a 400-hole plate.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
