251208:0010 Backend & Frontend Debug

frontend/package.json

@@ -34,11 +34,13 @@
     "lucide-react": "^0.555.0",
     "next": "^16.0.7",
     "next-auth": "5.0.0-beta.30",
+    "next-themes": "^0.4.6",
     "react": "^18",
     "react-dom": "^18",
     "react-dropzone": "^14.3.8",
     "react-hook-form": "^7.66.1",
     "reactflow": "^11.11.4",
+    "sonner": "^2.0.7",
     "tailwind-merge": "^3.4.0",
     "tailwindcss-animate": "^1.0.7",
     "uuid": "^13.0.0",