fix:菜单复合模式下，点击一级菜单会自动选择首位子菜单，不含子菜单则定位为顶栏本体。

web/src/pinia/modules/router.js

@@ -73,6 +73,7 @@ export const useRouterStore = defineStore('router', () => {
   const setLeftMenu = (name) => {
     sessionStorage.setItem('topActive', name)
     topActive.value = name
+    leftMenu.value = []
     if (menuMap[name]?.children) {
       leftMenu.value = menuMap[name].children
     }
@@ -81,19 +82,12 @@ export const useRouterStore = defineStore('router', () => {
 
   watchEffect(() => {
     let topActive = sessionStorage.getItem('topActive')
-    let firstHasChildren = ''
     asyncRouters.value[0]?.children.forEach((item) => {
       if (item.hidden) return
       menuMap[item.name] = item
-      if (!firstHasChildren && item.children && item.children.length > 0) {
-        firstHasChildren = item.name
-      }
       topMenu.value.push({ ...item, children: [] })
     })
 
-    if (!menuMap[topActive]?.children && firstHasChildren) {
-      topActive = firstHasChildren
-    }
     setLeftMenu(topActive)
   })