Bump-Steer Toe-Curve Plotter & Outer Tie-Rod Shim Thickness Calculator

Deterministic Instant-center planar 4-bar linkage arc-mismatch minimization between lower control arm & steering rack tie-rod engine (.csv, .json) built for SPL Parts, Hardrace, Wisefab, BG Racing — zero-upload ephemeral Wasm RAM execution.

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