Migrate to local PG & Update Solana Checkout

app/admin/layout.tsx

@@ -28,10 +28,8 @@ export default function AdminLayout({
 }) {
     const pathname = usePathname();
     const router = useRouter();
-    const supabase = createClient();
-
     const handleSignOut = async () => {
-        await supabase.auth.signOut();
+        await fetch('/api/auth/logout', { method: 'POST' });
         router.push('/login');
         router.refresh();
     };