fix(library): rewrite docs links before applying the markdown schema

Component handlers serialize children to strings, so nested markdown
links were no longer visitable once applySchema ran first.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/ui-library/scripts/library-mdx-to-markdown.test.ts

@@ -78,4 +78,21 @@ See the [React client](/library/docs/react/client).
 
     assert.match(output, /https:\/\/supabase\.com\/library\/docs\/react\/client\.md/)
   })
+
+  it('rewrites documentation links nested inside components', () => {
+    const output = transformLibraryMdx(`---
+title: Auth
+description: Auth block
+---
+
+<Callout type="note">
+See the [React client](/library/docs/react/client) before installing.
+</Callout>
+`)
+
+    assert.match(
+      output,
+      /Note: See the \[React client\]\(https:\/\/supabase\.com\/library\/docs\/react\/client\.md\) before installing\./
+    )
+  })
 })

apps/ui-library/scripts/library-mdx-to-markdown.ts

@@ -96,8 +96,8 @@ function rewriteLibraryLinks(tree: Root): void {
 export function transformLibraryMdx(raw: string): string {
   const { content, data } = matter(raw)
   const tree = parseMdx(content)
-  applySchema(tree, markdownSchema)
   rewriteLibraryLinks(tree)
+  applySchema(tree, markdownSchema)
   const body = serializeMdx(tree).trim()
 
   const headerParts: string[] = []