Deterministic 2D affine footprint pad-centroid matching + IPC-7351B vs EIA-481 tape-pocket zero-angle transform + Bottom-layer X-mirroring matrix engine (.csv, .xlsx, .gbr, .zip) built for JLCPCB, LCSC, KiCad, Altium Designer — zero-upload ephemeral Wasm RAM execution.
Running ephemeral Wasm verification…