Deterministic Exact 3D chord-to-corner true-length triangulation L_ij = ||P_rect,i - P_circ,j|| along neutral sheet surface + dihedral brake-angle vector dot product engine (.dxf, .pdf, .step) built for Lindab, Trumpf, Hypertherm, Camfil — zero-upload ephemeral Wasm RAM execution.
Running ephemeral Wasm verification…