Add generateStaticParams and generateMetadata to fix Next.js build failure

apps/site/app/docs/[[...slug]]/page.tsx

@@ -1,8 +1,33 @@
 import { source } from '@/lib/source';
 import { notFound } from 'next/navigation';
+import type { Metadata } from 'next';
 
-export const dynamicParams = true;
-export const dynamic = 'force-dynamic';
+export const dynamicParams = false;
+
+export function generateStaticParams() {
+  return source.generateParams();
+}
+
+export async function generateMetadata(props: {
+  params: Promise<{ slug?: string[] }>;
+}): Promise<Metadata> {
+  try {
+    const params = await props.params;
+    const page = source.getPage(params.slug);
+
+    if (!page) {
+      return {};
+    }
+
+    return {
+      title: page.data.title || 'Documentation',
+      description: page.data.description || undefined,
+    };
+  } catch (error) {
+    console.error('Error in generateMetadata:', error);
+    return {};
+  }
+}
 
 export default async function Page(props: {
   params: Promise<{ slug?: string[] }>;
@@ -16,6 +41,9 @@ export default async function Page(props: {
   return (
     <div className="container mx-auto px-4 py-8 max-w-4xl">
       <h1 className="text-3xl font-bold mb-4">{page.data.title || 'Untitled'}</h1>
+      {page.data.description && (
+        <p className="text-lg text-gray-600 mb-6">{page.data.description}</p>
+      )}
       <div className="prose prose-gray max-w-none">
         {MDX && <MDX />}
       </div>

apps/site/content/docs/meta.json

@@ -0,0 +1,8 @@
+{
+  "title": "Documentation",
+  "pages": [
+    "index",
+    "guide",
+    "spec"
+  ]
+}

apps/site/package.json

@@ -14,7 +14,7 @@
     "fumadocs-mdx": "^14.2.5",
     "fumadocs-ui": "^15.0.0",
     "lucide-react": "^0.344.0",
-    "next": "^15.1.6",
+    "next": "^15.3.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "zod": "^4.3.5"