[ecomcn] Where the shopper is in checkout: a rail of equal ruled cells, edge to edge. Done steps carry a check and are buttons back to them; the current step is aria-current="step"; steps to come are not clickable. Never colour alone โ a check, a number, and a heavy rule under the current step that slides on
pnpm dlx shadcn@latest add "https://registry.directory/r/ecomcn/checkout-stepper.json"