refactor(layout): 优化路由渲染逻辑

- 将路由映射的构建过程移至 useEffect 中，仅在初始化时执行
-重构 renderRoutes 函数，分离路由映射构建和菜单渲染逻辑- 优化子路由的处理方式，提高代码可读性和性能

src/pages/layout.tsx

@@ -103,17 +103,12 @@ function PageLayout({ children }: { children: ReactNode }) {
   const paddingTop = showNavbar ? { paddingTop: navbarHeight } : {};
   const paddingStyle = { ...paddingLeft, ...paddingTop };
 
-  function renderRoutes(locale) {
-    routeMap.current.clear();
-    return function travel(_routes: IRoute[], level, parentNode = []) {
-      return _routes.map((route) => {
+  // 初始化时创建并实例路由映射
+  useEffect(() => {
+    // 仅构建 routeMap，不渲染菜单
+    function buildRouteMap(_routes: IRoute[], parentNode = []) {
+      _routes.forEach((route) => {
         const { breadcrumb = true, ignore } = route;
-        const iconDom = getIconFromKey(route.key);
-        const titleDom = (
-          <>
-            {iconDom} {locale[route.name] || route.name}
-          </>
-        );
 
         routeMap.current.set(
           `/${route.key}`,
@@ -128,13 +123,37 @@ function PageLayout({ children }: { children: ReactNode }) {
               breadcrumb ? [...parentNode, route.name, child.name] : []
             );
           }
-
           return !ignore;
         });
 
+        if (!ignore && visibleChildren.length) {
+          buildRouteMap(visibleChildren, [...parentNode, route.name]);
+        }
+      });
+    }
+
+    buildRouteMap(routes);
+  }, [routes]);
+
+  function renderRoutes(locale) {
+    return function travel(_routes: IRoute[], level, parentNode = []) {
+      return _routes.map((route) => {
+        const { ignore } = route;
+        const iconDom = getIconFromKey(route.key);
+        const titleDom = (
+          <>
+            {iconDom} {locale[route.name] || route.name}
+          </>
+        );
+
+        const visibleChildren = (route.children || []).filter((child) => {
+          return !child.ignore;
+        });
+
         if (ignore) {
           return '';
         }
+
         if (visibleChildren.length) {
           menuMap.current.set(route.key, { subMenu: true });
           return (
@@ -143,6 +162,7 @@ function PageLayout({ children }: { children: ReactNode }) {
             </SubMenu>
           );
         }
+
         menuMap.current.set(route.key, { menuItem: true });
         return (
           <MenuItem key={route.key}>