fix: redirect to SSO if user isnt exist and show loading state if still loading user

src/app/page.tsx

@@ -2,17 +2,30 @@
 
 import { useEffect } from 'react';
 import { useRouter } from 'next/navigation';
+import { useAuth } from '@/services/hooks/useAuth';
+import { redirectToSSO } from '@/lib/auth-helper';
 
 export default function Home() {
+  const { user, isLoadingUser } = useAuth();
+
   const router = useRouter();
 
   useEffect(() => {
     router.replace('/dashboard');
-  }, [router]);
+  }, [user, isLoadingUser]);
 
+  if (isLoadingUser) {
     return (
       <main className='w-full h-full min-h-screen flex flex-row justify-center items-center'>
         <span className='loading loading-spinner loading-lg'></span>
       </main>
     );
+  }
+
+  if (!isLoadingUser && !user) {
+    redirectToSSO();
+    return;
+  }
+
+  return null;
 }