nx_step_tess2_gate.nx

nx_step_tess2_gate.nx -- COMPLETE planar tessellation on the real as1: B-spline curve edges (Cox-de Boor, degree up to 5 non-uniform) + keyhole hole bridging. Target: ALL 25 planar faces tessellate (v1 managed 12; the 13 missing = 9 hole-faces + 4 spline-loop faces) -> whole model 53/53 with the sgn round faces. The v1 EXACT invariant (ear sum == shoelace) must hold on every bridged keyhole too (bridges cancel exactly). Metrology: nut hole rim (file's own spline of the R=5.000mm circle at (10,7.5)) -- sampled deviation MEASURED and reported in um. expect_exit: 0 license_tier: ORIGINAL