[ns-ui] A 404 rendered as returned mail: the failed URL addressed on an envelope that slides in, its routing history stamped hop by hop (edge, origin, router) as sequential ink postmarks, the last hop knocked down with a squash-and-settle NO SUCH ADDRESS hand-stamp and a 1px shake, then a forwarding-address
pnpm dlx shadcn@latest add "https://registry.directory/r/nikolas-sapa/not-found-postmark.json"