Add authentication

package.json

@@ -23,10 +23,14 @@
     "@radix-ui/react-tabs": "^1.1.12",
     "@radix-ui/react-tooltip": "^1.2.7",
     "@tanstack/react-table": "^8.21.3",
+    "@types/js-cookie": "^3.0.6",
+    "@types/jsonwebtoken": "^9.0.10",
     "axios": "^1.10.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "date-fns": "^4.1.0",
+    "js-cookie": "^3.0.5",
+    "jsonwebtoken": "^9.0.2",
     "lowdb": "^7.0.1",
     "lucide-react": "^0.525.0",
     "next": "15.3.5",