* Fillet and chamfer: refuse a smooth seam as having no corner to round
Picking the seams where R10 rounds run into the faces beside them, and asking for an R1
fillet there, failed with "not supported yet: blending a smooth edge (... both faces next
to the edge must be planar)". That reads like a missing feature, but the faces meet
tangentially at those edges and there is nothing to round.
An edge whose two faces are tangent along it is now refused as an invalid pick that names
the edge and asks for the sharp edges.
Fixes#896.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
* Robustness goldens: seed 72's smooth-seam fillet is now a rejected pick, not unsupported
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Co-authored-by: Claude Opus 5.5 <[email protected]>
