nx_lerp_smooth_gate.nx

nx_lerp_smooth_gate.nx -- proves the sovereign peer render-smoothing primitive (nx_lerp_smooth), the EXACT code the wasm game uses for smooth peer motion. Native nx_cc->nxasm, NO node. 1) interpolation endpoints: alpha 0=prev, 128=midpoint, 256=cur 2) monotone glide: as alpha advances, rendered moves prev->cur monotonically, each per-frame step bounded 3) bounded extrapolation: past cur it keeps gliding (no freeze) but is CLAMPED (no runaway) 4) reaches cur in ~5 frames (the ~80ms sync at ~60fps) 5) anti-tautology (neg): rendered actually depends on alpha (not constant); works for downward motion too license_tier: ORIGINAL