fix: refresh user logout state

src/web/App.tsx

@@ -1096,7 +1096,10 @@ function AppShell() {
                 <Route path="/users" element={<UserManagement />} />
 
                 {/* User specific pages */}
-                <Route path="/user/dashboard" element={<UserDashboard />} />
+                <Route
+                  path="/user/dashboard"
+                  element={<UserDashboard onLogout={() => setUserAuthed(false)} />}
+                />
                 <Route path="/user/dashboard/keys" element={<UserKeys />} />
                 <Route path="/user/dashboard/profile" element={<UserProfile />} />
                 <Route path="/user/usage" element={<UsageRecords />} />

src/web/pages/UserDashboard.tsx

@@ -35,7 +35,7 @@ interface LogItem {
   created_at: string;
 }
 
-export default function UserDashboard() {
+export default function UserDashboard({ onLogout }: { onLogout?: () => void }) {
   const navigate = useNavigate();
   const [profile, setProfile] = useState<UserProfile | null>(null);
   const [keys, setKeys] = useState<ApiKey[]>([]);
@@ -74,6 +74,12 @@ export default function UserDashboard() {
 
   useEffect(() => { loadData(); }, [loadData]);
 
+  const handleLogout = () => {
+    clearUserSession(localStorage);
+    onLogout?.();
+    navigate('/user/login', { replace: true });
+  };
+
   if (loading) {
     return (
       <div style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', height: '100%', minHeight: '400px' }}>
@@ -210,7 +216,7 @@ export default function UserDashboard() {
             </div>
             <div style={{ marginTop: '20px', display: 'flex', gap: '10px' }}>
               <button className="btn btn-ghost btn-sm" style={{ flex: 1, border: '1px solid var(--color-border)' }} onClick={() => navigate('/user/dashboard/profile')}>修改资料</button>
-              <button className="btn btn-ghost btn-sm danger" style={{ flex: 1, border: '1px solid var(--color-border)' }} onClick={() => { clearUserSession(localStorage); window.location.href = '/user/login'; }}>退出登录</button>
+              <button className="btn btn-ghost btn-sm danger" style={{ flex: 1, border: '1px solid var(--color-border)' }} onClick={handleLogout}>退出登录</button>
             </div>
           </section>
         </div>