fix: remove 401 hard redirect, let React Query retry

The /api/me call races with TokenSync — fires before the token
provider is set. Removed the hard window.location redirect on 401
from the API client. React Query retries with backoff instead.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/api/client.ts

@@ -6,11 +6,6 @@ export function setTokenProvider(provider: (() => Promise<string | undefined>) |
   tokenProvider = provider;
 }
 
-let logoutHandler: (() => void) | null = null;
-
-export function setLogoutHandler(handler: (() => void) | null) {
-  logoutHandler = handler;
-}
 
 async function apiFetch<T>(path: string, options: RequestInit = {}): Promise<T> {
   const token = tokenProvider ? await tokenProvider() : null;
@@ -27,8 +22,8 @@ async function apiFetch<T>(path: string, options: RequestInit = {}): Promise<T>
   const response = await fetch(`${API_BASE}${path}`, { ...options, headers });
 
   if (response.status === 401) {
-    if (logoutHandler) logoutHandler();
-    window.location.href = '/login';
+    // Don't hard-redirect — let React Query retry (token may not be ready yet).
+    // The ProtectedRoute handles unauthenticated state.
     throw new Error('Unauthorized');
   }
 

ui/src/api/hooks.ts

@@ -190,6 +190,8 @@ export function useMe() {
     queryKey: ['me'],
     queryFn: () => api.get<MeResponse>('/me'),
     staleTime: 60_000,
+    retry: 3,
+    retryDelay: 1000,
   });
 }
 

ui/src/main.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useEffect, useCallback } from 'react';
+import React, { useState, useEffect } from 'react';
 import ReactDOM from 'react-dom/client';
 import { LogtoProvider, UserScope, useLogto } from '@logto/react';
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
@@ -7,7 +7,7 @@ import { ThemeProvider, ToastProvider, BreadcrumbProvider, GlobalFilterProvider,
 import '@cameleer/design-system/style.css';
 import { AppRouter } from './router';
 import { fetchConfig } from './config';
-import { setTokenProvider, setLogoutHandler } from './api/client';
+import { setTokenProvider } from './api/client';
 import { useOrgStore } from './auth/useOrganization';
 
 const queryClient = new QueryClient({
@@ -20,7 +20,7 @@ const queryClient = new QueryClient({
 });
 
 function TokenSync({ resource }: { resource: string }) {
-  const { getAccessToken, isAuthenticated, signOut, fetchUserInfo } = useLogto();
+  const { getAccessToken, isAuthenticated, fetchUserInfo } = useLogto();
   const { currentOrgId, setCurrentOrg, setOrganizations } = useOrgStore();
 
   // After auth, resolve user's organizations from Logto
@@ -59,15 +59,6 @@ function TokenSync({ resource }: { resource: string }) {
     }
   }, [isAuthenticated, getAccessToken, resource, currentOrgId]);
 
-  const handleLogout = useCallback(() => {
-    signOut(window.location.origin + '/login');
-  }, [signOut]);
-
-  useEffect(() => {
-    setLogoutHandler(handleLogout);
-    return () => setLogoutHandler(null);
-  }, [handleLogout]);
-
   return null;
 }