ddcfe01cba
Three parallel tracks:
M1 — Tolerant Modeling + Robust Boolean + STEP import
(tolerant edges/vertices, gap bridging, overlap resolution,
tolerant boolean, degenerate case handling, GMP full coverage)
M2 — Class-A Surfacing Deep + Advanced Hex Meshing
(G3+ constraints, surface energy minimization, curvature optimization,
mapped/submapped/multi-block hex meshing)
M3 — Constraint Solving + Drawing Standards
(DOF analysis, redundancy detection, kinematic chain solving,
ISO/ANSI/JIS complete rule sets, auto-apply standards)
9 files, ~5200 lines, 69 tests. Target: 87% → 93% (match ACIS)