feat: 添加二级导航，解决二级导航的展示问题

src/layouts/Home.js

@@ -13,10 +13,11 @@ import SettingsPage from "views/Settings/SettingsPage";
 import CenterDashboard from "views/Dashboard/Center";
 import Subscription from "views/Pages/Account/Subscription";
 
-// 懒加载隐私政策、用户协议和微信回调页面
+// 懒加载隐私政策、用户协议、微信回调和模拟交易页面
 const PrivacyPolicy = React.lazy(() => import("views/Pages/PrivacyPolicy"));
 const UserAgreement = React.lazy(() => import("views/Pages/UserAgreement"));
 const WechatCallback = React.lazy(() => import("views/Pages/WechatCallback"));
+const TradingSimulation = React.lazy(() => import("views/TradingSimulation"));
 
 // 导入保护路由组件
 import ProtectedRoute from "../components/ProtectedRoute";
@@ -71,6 +72,16 @@ export default function Home() {
                         }
                     />
 
+                    {/* 模拟盘交易页面 */}
+                    <Route
+                        path="/trading-simulation"
+                        element={
+                            <ProtectedRoute>
+                                <TradingSimulation />
+                            </ProtectedRoute>
+                        }
+                    />
+
                     {/* 隐私政策页面 - 无需登录 */}
                     <Route path="/privacy-policy" element={<PrivacyPolicy />} />