initial: mirror of @fn_library from fn_registry

75 components + DESIGN_SYSTEM.md + sync script.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

components/rating.tsx

@@ -0,0 +1,10 @@
+import { Rating as MantineRating, type RatingProps as MantineRatingProps } from '@mantine/core'
+
+interface RatingProps extends MantineRatingProps {}
+
+function Rating(props: RatingProps) {
+  return <MantineRating {...props} />
+}
+
+export { Rating }
+export type { RatingProps }