Update frontend

app/auth/login/page.tsx

@@ -11,7 +11,7 @@ import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 
 export default function LoginPage() {
-  const [username, setUsername] = useState(""); // ✅ Fixed incorrect state name
+  const [username, setUsername] = useState(""); 
   const [password, setPassword] = useState("");
   const [error, setError] = useState("");
   const router = useRouter();
@@ -20,7 +20,7 @@ export default function LoginPage() {
     e.preventDefault();
     setError("");
 
-    const res = await fetchData("http://localhost:3001/api/auth/login", {
+    const res = await fetchData(`${process.env.NEXT_PUBLIC_API_URL}/auth/login`, {
       method: "POST",
       headers: { "Content-Type": "application/json" },
       body: JSON.stringify({ username, password }),