Contact form logic

package.json

@@ -34,9 +34,14 @@
     "astro": "^5.2.3",
     "astro-embed": "^0.9.0",
     "astro-icon": "^1.1.5",
+    "csrf": "^3.1.0",
+    "dotenv": "^16.4.7",
+    "form-data": "^4.0.2",
     "limax": "4.1.0",
     "lodash.merge": "^4.6.2",
     "node-fetch": "^3.3.2",
+    "nodemailer": "^6.10.0",
+    "rate-limiter-flexible": "^5.0.5",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "unpic": "^3.22.0"