seo

package.json

@@ -16,10 +16,12 @@
   "dependencies": {
     "@astrojs/mdx": "^4.3.13",
     "@astrojs/react": "^4.4.2",
+    "@astrojs/sitemap": "^3.6.1",
     "@astrojs/tailwind": "^6.0.2",
     "@types/ioredis": "^4.28.10",
     "@types/react": "^19.2.8",
     "@types/react-dom": "^19.2.3",
+    "@vercel/og": "^0.8.6",
     "astro": "^5.16.8",
     "ioredis": "^5.9.1",
     "lucide-react": "^0.468.0",