[ns-ui] An ambient row-level 'processing/refreshing' indicator built from mechanised sleeper-renewal trains: a crawling gantry crane lifts one old sleeper clear, swings a new one into the gap, and clips the rail down before advancing to the next tie. Old-vs-new is a continuous wear gradient across the 8-row
pnpm dlx shadcn@latest add "https://registry.directory/r/nikolas-sapa/sleeper-renewal-relay.json"