refactor(menu): 简化团购管理菜单结构- 移除了团购管理的重定向配置

- 将团购管理首页直接作为一级菜单项- 保留了原有的元数据和组件配置
- 调整了子菜单结构，保持功能完整性

src/assets/json/authMenuList.json

@@ -17,8 +17,8 @@
     },
     {
       "path": "/groupPackageManagement",
-      "name": "groupPackageManagement",
-      "redirect": "/groupPackageManagement/index",
+      "name": "groupPackageManagementIndex",
+      "component": "/groupPackageManagement/index",
       "meta": {
         "icon": "ShoppingBag",
         "title": "团购管理",
@@ -30,20 +30,6 @@
       },
       "children": [
         {
-          "path": "/groupPackageManagement/index",
-          "name": "groupPackageManagementIndex",
-          "component": "/groupPackageManagement/index",
-          "meta": {
-            "icon": "ShoppingBag",
-            "title": "团购管理",
-            "isLink": "",
-            "isHide": false,
-            "isFull": false,
-            "isAffix": false,
-            "isKeepAlive": false
-          }
-        },
-        {
           "path": "/groupPackageManagement/newGroup",
           "name": "groupPackageManagementNewGroup",
           "component": "/groupPackageManagement/newGroup",