Kernel: concave edge fillets; whole smooth-loop blends of planar faces (cylinders and tori: pocket floors, plate outlines); rounding every edge of a convex planar body (sphere corners); healing after booleans (exact lines/arcs for intersection curves, coplanar faces merged, collinear edges joined); faces rebuilt on their stored surfaces

Oracle: 28/29.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL

crates/kernel/src/lib.rs

@@ -15,6 +15,8 @@
 mod blend;
 mod body;
 mod build;
+mod heal;
+mod loopblend;
 mod measure;
 mod meshbody;
 mod ops;