页面路由跳转返回后数据回显，记住原先的状态

src/layout/components/Sidebar/Link.vue

@@ -35,7 +35,10 @@ export default {
         }
       }
       return {
-        to: to
+        to: {
+          path: to,
+          query: { menu: '1', _t: Date.now() }  // 菜单入口标记，_t确保每次URL不同，触发组件更新
+        }
       }
     }
   }