feat(refactor): premium zed-style chat UI, collapsible reasoning, and comprehensive strict type sweeps

vibn-frontend/package.json

@@ -54,8 +54,11 @@
     "daisyui": "^5.5.1-beta.2",
     "dotenv": "^17.2.3",
     "firebase": "^12.5.0",
+    "form-data": "^4.0.5",
     "google-auth-library": "^10.5.0",
     "lucide-react": "^0.553.0",
+    "mailgun.js": "^13.0.1",
+    "mjml": "^5.2.2",
     "next": "16.0.1",
     "next-auth": "^4.24.13",
     "next-themes": "^0.4.6",
@@ -78,6 +81,7 @@
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4",
+    "@types/mjml": "^5.0.0",
     "@types/node": "^20",
     "@types/react": "^19",
     "@types/react-dom": "^19",