Fix restore cloud button auth token issue

src/App.tsx

@@ -2476,13 +2476,14 @@ function FileManagerComponent({ serverId }: { serverId: string }) {
                     onClick={async () => {
                       if (!confirm('This will download your latest backup from HF datasets. Continue?')) return;
                       try {
-                        const token = localStorage.getItem('token') || '';
-                        const res = await fetch(`${API_BASE}/api/servers/${serverId}/restore`, {
-                          method: 'POST',
-                          headers: { 'Authorization': `Bearer ${token}` }
+                        const res = await authFetch(`${API_BASE}/api/servers/${serverId}/restore`, {
+                          method: 'POST'
                         });
                         if (res.ok) {
                           alert('Restore started! Check the console or cloud sync tab for progress. Refresh files soon.');
+                        } else {
+                          const data = await res.json();
+                          alert('Failed: ' + (data.error || 'Unknown error'));
                         }
                       } catch (e) {
                          alert('Error starting restore');