- C++ shim on real SmBSplineSurface/SmPlane: ComputePointValues (with and
without previous point), LocalPointSolve, DoesPointLieOnCurve,
FindSolutionsOnBoundaryCurve, BranchMayContainAnswers on hand-built trees
- boundary solutions name the curve (BoundaryCurve now carries its natural
interval), as upstream stores the curve pointer
- fixtures from prog_test smSurfaceTest.cpp:3564 (CreateSilhouetteCurves
surface) plus plane edge cases
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MNGVDsEXPdxtFSUKma3wKs