Understand the Fict shadcn builtin and custom registries.
builtin registry is bundled with @fictjs/shadcn. It contains Fict JSX templates, dependency metadata, blocks, and themes.
npx @fictjs/shadcn@latest list
npx @fictjs/shadcn@latest blocks listregistry in fictcn.json to an HTTP, HTTPS, or file URL to consume a compatible custom Fict registry. Remote entries use the same source ownership and lock-file checks as builtin entries.