Multi-Layer PCB Stackup Copper-Symmetry & Reflow Warpage Predictor

Deterministic Classical Laminated Plate Theory (CLPT) ABD stiffness matrix + asymmetric CTE thermal moment curvature kappa_x, kappa_y engine (.gbr, .zip, .json, .csv) built for Isola, Shengyi, JLCPCB, Altium Designer — zero-upload ephemeral Wasm RAM execution.

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