refactor: 移除重复的成功提示消息

统一移除各组件中手动添加的ElMessage.success提示，改为由API调用或全局拦截器统一处理

frontend/src/views/current/profile.vue

@@ -420,7 +420,6 @@ const handleSave = async () => {
     // 确保avatar字段被正确处理
     const response = await UserAPI.updateCurrentUserInfo({...infoFormState});
     await userStore.setUserInfo(response.data.data);
-    ElMessage.success('保存成功');
   } catch (error) {
     console.error(error);
     ElMessage.error('保存失败，请重试');