feat: implement auth flow and app initialization

package.json

@@ -39,7 +39,6 @@
     "lucide-react": "^0.548.0",
     "motion": "^12.38.0",
     "next": "16.0.10",
-    "next-auth": "^4.24.14",
     "next-themes": "^0.4.6",
     "radix-ui": "^1.4.3",
     "react": "19.2.0",
@@ -58,6 +57,7 @@
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "autoprefixer": "^10.4.20",
+    "baseline-browser-mapping": "^2.10.37",
     "eslint": "^9.39.4",
     "eslint-config-next": "^16.1.7",
     "eslint-config-prettier": "^10.1.8",