fix: apply seo agent improvements to src/app/blog/[slug]/page.tsx

src/app/blog/[slug]/page.tsx

@@ -1,14 +1,59 @@
-'use client'
-import { useParams } from 'next/navigation'
-import PublicLayout from '@/components/public/PublicLayout'
-import BlogPostPage from '@/components/public/BlogPostPage'
+import type { Metadata } from 'next'
+import BlogPostPageClient from '@/components/public/BlogPostPageClient'
 
-export default function PostPage() {
-  const params = useParams()
-  const slug = params.slug as string
-  return (
-    <PublicLayout>
-      <BlogPostPage slug={slug} />
-    </PublicLayout>
-  )
+const SITE_URL = process.env.NEXT_PUBLIC_SITE_URL || 'https://example.com'
+const SITE_NAME = process.env.NEXT_PUBLIC_SITE_NAME || 'My Personal Site'
+
+interface Props {
+  params: { slug: string }
+}
+
+/**
+ * NOTE: For full dynamic metadata you would fetch the post here.
+ * Since this CMS appears to be client-side/localStorage based,
+ * we provide sensible per-slug defaults and let the client
+ * component inject JSON-LD after hydration.
+ */
+export async function generateMetadata({ params }: Props): Promise<Metadata> {
+  const slug = params.slug
+  const title = slug
+    .split('-')
+    .map((w: string) => w.charAt(0).toUpperCase() + w.slice(1))
+    .join(' ')
+
+  const description = `Read "${title}" on ${SITE_NAME}.`
+  const canonicalUrl = `${SITE_URL}/blog/${slug}`
+  const ogImageUrl = `/api/og?slug=${encodeURIComponent(slug)}`
+
+  return {
+    title,
+    description,
+    alternates: {
+      canonical: canonicalUrl,
+    },
+    openGraph: {
+      type: 'article',
+      url: canonicalUrl,
+      title: `${title} | ${SITE_NAME}`,
+      description,
+      images: [
+        {
+          url: ogImageUrl,
+          width: 1200,
+          height: 630,
+          alt: title,
+        },
+      ],
+    },
+    twitter: {
+      card: 'summary_large_image',
+      title: `${title} | ${SITE_NAME}`,
+      description,
+      images: [ogImageUrl],
+    },
+  }
+}
+
+export default function PostPage({ params }: Props) {
+  return <BlogPostPageClient slug={params.slug} />
 }