RLS policies implementeren, Demo auth flow

package.json

@@ -12,6 +12,7 @@
   "dependencies": {
     "@react-three/drei": "^10.7.7",
     "@react-three/fiber": "^9.4.0",
+    "@supabase/ssr": "^0.7.0",
     "@supabase/supabase-js": "^2.81.1",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
@@ -22,14 +23,18 @@
     "react-dom": "19.2.0",
     "tailwind-merge": "^3.4.0",
     "tailwindcss-animate": "^1.0.7",
-    "three": "^0.181.1"
+    "three": "^0.181.1",
+    "tsx": "^4.20.6",
+    "zod": "^4.1.12"
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4",
     "@types/node": "^20",
     "@types/react": "^19",
     "@types/react-dom": "^19",
+    "@types/three": "^0.181.0",
     "autoprefixer": "^10.4.22",
+    "dotenv": "^17.2.3",
     "eslint": "^9",
     "eslint-config-next": "16.0.1",
     "postcss": "^8.5.6",