v0.9.88 major change sqlite to postgres

frontend/src/components/UserManagerModal.jsx

@@ -221,8 +221,13 @@ export default function UserManagerModal({ onClose }) {
   const fileRef = useRef(null);
   const [userPass, setUserPass] = useState('user@1234');
 
+  const [loadError, setLoadError] = useState('');
   const load = () => {
-    api.getUsers().then(({ users }) => setUsers(users)).catch(() => {}).finally(() => setLoading(false));
+    setLoadError('');
+    api.getUsers()
+      .then(({ users }) => setUsers(users))
+      .catch(e => setLoadError(e.message || 'Failed to load users'))
+      .finally(() => setLoading(false));
   };
   useEffect(() => {
     load();
@@ -305,6 +310,11 @@ export default function UserManagerModal({ onClose }) {
             <input className="input" style={{ marginBottom: 12 }} placeholder="Search users…" autoComplete="new-password" autoCorrect="off" autoCapitalize="off" spellCheck={false} value={search} onChange={e => setSearch(e.target.value)} />
             {loading ? (
               <div className="flex justify-center" style={{ padding: 40 }}><div className="spinner" /></div>
+            ) : loadError ? (
+              <div style={{ padding: 24, textAlign: 'center', color: 'var(--error)' }}>
+                <div style={{ marginBottom: 10 }}>⚠ {loadError}</div>
+                <button className="btn btn-secondary btn-sm" onClick={() => { setLoading(true); load(); }}>Retry</button>
+              </div>
             ) : (
               <div style={{ maxHeight: '60vh', overflowY: 'auto' }}>
                 {filtered.map(u => (