Open-Door Mortise Lock Backset, PZ Center Distance & Faceplate SKU Sizer

Deterministic Two-plane orthogonal door-edge homography + keyhole/spindle centroid projection + DIN 18251 / EN 12209 quantized catalog matcher engine (.jpg, .heic, .png, .pdf) built for ABUS, ASSA ABLOY, AGB, Kale Kilit — zero-upload ephemeral Wasm RAM execution.

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