update:1.更新用户管理-支持管理员新增用户

frontend/src/App.tsx

@@ -15,6 +15,7 @@ import ChapterAnalysis from './pages/ChapterAnalysis';
 import WritingStyles from './pages/WritingStyles';
 import Settings from './pages/Settings';
 import MCPPlugins from './pages/MCPPlugins';
+import UserManagement from './pages/UserManagement';
 // import Polish from './pages/Polish';
 import Login from './pages/Login';
 import AuthCallback from './pages/AuthCallback';
@@ -38,6 +39,7 @@ function App() {
           <Route path="/wizard" element={<ProtectedRoute><ProjectWizardNew /></ProtectedRoute>} />
           <Route path="/settings" element={<ProtectedRoute><Settings /></ProtectedRoute>} />
           <Route path="/mcp-plugins" element={<ProtectedRoute><MCPPlugins /></ProtectedRoute>} />
+          <Route path="/user-management" element={<ProtectedRoute><UserManagement /></ProtectedRoute>} />
           <Route path="/chapters/:chapterId/reader" element={<ProtectedRoute><ChapterReader /></ProtectedRoute>} />
           <Route path="/project/:projectId" element={<ProtectedRoute><ProjectDetail /></ProtectedRoute>}>
             <Route index element={<Navigate to="world-setting" replace />} />