Add SEO+GEO foundation + blog auto JSON-LD + robots fix

src/pages/blog/[slug].astro

@@ -14,12 +14,116 @@ export async function getStaticPaths() {
 
 const { post } = Astro.props;
 const { Content } = await render(post);
+const siteUrl = new URL('/', Astro.site).toString();
+
+// --- Date formatting ---
 const formattedDate = new Intl.DateTimeFormat('th-TH', {
   dateStyle: 'long',
 }).format(post.data.pubDate);
+
+// --- Image: og_image > heroImage > default logo ---
+const ogImage = new URL(
+  post.data.og_image || post.data.heroImage || '/images/logos/logo-long-black.png',
+  Astro.site,
+).toString();
+
+// --- FAQPage auto-extraction ---
+const rawBody = post.body || '';
+const faqSectionRegex = /##\s*คำถามที่พบบ่อย\s*\n([\s\S]*?)(?=##\s|\Z)/;
+const faqMatch = rawBody.match(faqSectionRegex);
+const faqPairs: { question: string; answer: string }[] = faqMatch
+  ? [...faqMatch[1].matchAll(/###\s+(.+?)\n\s*\n?(.+?)(?=\n###|\Z)/gs)]
+      .map(([, q, a]) => ({ question: q.trim(), answer: a.trim() }))
+  : [];
+
+// --- Escaped body for JSON-LD safety ---
+const safeBody = rawBody.replace(/<\//g, '<\\/');
+
+// --- BlogPosting JSON-LD ---
+const blogPostingJsonLd = JSON.stringify({
+  '@context': 'https://schema.org',
+  '@id': `${siteUrl}blog/${post.id}/#blogposting`,
+  '@type': 'BlogPosting',
+  headline: post.data.title,
+  description: post.data.description,
+  datePublished: post.data.pubDate.toISOString(),
+  dateModified: (post.data.updatedDate || post.data.pubDate).toISOString(),
+  ...(post.data.author && {
+    author: { '@type': 'Person', name: post.data.author },
+  }),
+  ...(post.data.reviewer && {
+    reviewedBy: { '@type': 'Person', name: post.data.reviewer },
+  }),
+  publisher: {
+    '@id': `${siteUrl}#organization`,
+    '@type': 'Organization',
+    name: 'MoreminiMore',
+    logo: {
+      '@type': 'ImageObject',
+      url: new URL('/images/logos/logo-long-black.png', Astro.site).toString(),
+    },
+  },
+  mainEntityOfPage: new URL(`/blog/${post.id}/`, Astro.site).toString(),
+  articleBody: safeBody,
+});
+
+// --- BreadcrumbList JSON-LD ---
+const breadcrumbJsonLd = JSON.stringify({
+  '@context': 'https://schema.org',
+  '@id': `${siteUrl}blog/${post.id}/#breadcrumb`,
+  '@type': 'BreadcrumbList',
+  itemListElement: [
+    {
+      '@type': 'ListItem',
+      position: 1,
+      name: 'บทความ',
+      item: new URL('/blog/', Astro.site).toString(),
+    },
+    {
+      '@type': 'ListItem',
+      position: 2,
+      name: post.data.title,
+    },
+  ],
+});
+
+// --- FAQPage JSON-LD ---
+const faqPageJsonLd = faqPairs.length > 0
+  ? JSON.stringify({
+      '@context': 'https://schema.org',
+      '@id': `${siteUrl}blog/${post.id}/#faq`,
+      '@type': 'FAQPage',
+      mainEntity: faqPairs.map(({ question, answer }) => ({
+        '@type': 'Question',
+        name: question,
+        acceptedAnswer: {
+          '@type': 'Answer',
+          text: answer,
+        },
+      })),
+    })
+  : '';
 ---
 
-<PageShell title={`${post.data.title} | MoreminiMore`} description={post.data.description}>
+<PageShell
+  title={`${post.data.title} | MoreminiMore`}
+  description={post.data.description}
+  image={ogImage}
+>
+  <!-- JSON-LD: BreadcrumbList -->
+  <script type="application/ld+json" set:html={breadcrumbJsonLd}>
+  </script>
+
+  <!-- JSON-LD: BlogPosting -->
+  <script type="application/ld+json" set:html={blogPostingJsonLd}>
+  </script>
+
+  <!-- JSON-LD: FAQPage (auto — only if FAQ section found) -->
+  {faqPageJsonLd && (
+    <script type="application/ld+json" set:html={faqPageJsonLd}>
+    </script>
+  )}
+
   <article class="blog-article">
     <header class="blog-article-hero scene scene-light" data-scene="light">
       <div class="blog-article-heading">