fix: resolve prefetch warning and getSidebar crash (#936)

- Extract prefetch prop in Link component to prevent React non-boolean attribute warning
- Add validation in getSidebar to handle missing _layout.md files gracefully

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <[email protected]>

Author: tianzhou

src/components/shared/link/link.tsx

@@ -44,6 +44,7 @@ const Link = ({
   href,
   children,
   withArrow = false,
+  prefetch,
   ...props
 }: LinkProps) => {
   const linkClassName = clsx(
@@ -63,7 +64,7 @@ const Link = ({
 
   if (href.startsWith('/')) {
     return (
-      <NextLink className={linkClassName} href={href} {...props}>
+      <NextLink className={linkClassName} href={href} prefetch={prefetch} {...props}>
         {content}
       </NextLink>
     );

src/lib/api-docs.ts

@@ -24,15 +24,12 @@ const getPostBySlug = (
     const source = fs.readFileSync(`${docsPath}/${slug}.md`);
     const { data, content } = matter(source);
 
-    const contentWithReplacements = content.replace(
-      /%%bb_api_endpoint%%/g,
-      (match) => {
-        if (match === '%%bb_api_endpoint%%') {
-          return API_ENDPOINT;
-        }
-        return match; // Just in case there's a match that doesn't fit any case
-      },
-    );
+    const contentWithReplacements = content.replace(/%%bb_api_endpoint%%/g, (match) => {
+      if (match === '%%bb_api_endpoint%%') {
+        return API_ENDPOINT;
+      }
+      return match; // Just in case there's a match that doesn't fit any case
+    });
 
     return { data, content: contentWithReplacements };
   } catch (e) {
@@ -84,6 +81,11 @@ const getSidebar = (docsPath: string): { sidebar: SidebarItem[]; expandedList: s
 
   const sidebar: SidebarItem[] = [];
 
+  // Check if layout file exists
+  if (!layoutFile || !layoutFile[0]) {
+    return { sidebar: [], expandedList: [] };
+  }
+
   const md = fs.readFileSync(layoutFile[0], 'utf-8');
   const { data, content } = matter(md);