[ns-ui] A hardenability comparison card built on the real ASTM A255 / ISO 642 Jominy end-quench test: a water jet sprays one end of a heated steel bar continuously, a directional quench front creeps up the bar, and hardness falls off with distance from that face along a curve that is each alloy's signature,
pnpm dlx shadcn@latest add "https://registry.directory/r/nikolas-sapa/jominy-quench.json"