实现消息记录功能，包括增删改查和标记已读，优化消息列表展示和未读消息计数

Web/src/api/message.js

@@ -0,0 +1,81 @@
+import request from './request'
+
+/**
+ * 消息相关 API
+ */
+
+/**
+ * 获取消息列表
+ * @param {Object} params - 查询参数
+ * @param {number} [params.pageIndex] - 页码
+ * @param {number} [params.pageSize] - 每页数量
+ * @returns {Promise<{success: boolean, data: Array, total: number}>}
+ */
+export const getMessageList = (params = {}) => {
+  return request({
+    url: '/MessageRecord/GetList',
+    method: 'get',
+    params
+  })
+}
+
+/**
+ * 获取未读消息数量
+ * @returns {Promise<{success: boolean, data: number}>}
+ */
+export const getUnreadCount = () => {
+  return request({
+    url: '/MessageRecord/GetUnreadCount',
+    method: 'get'
+  })
+}
+
+/**
+ * 标记消息为已读
+ * @param {number} id - 消息ID
+ * @returns {Promise<{success: boolean}>}
+ */
+export const markAsRead = (id) => {
+  return request({
+    url: '/MessageRecord/MarkAsRead',
+    method: 'post',
+    params: { id }
+  })
+}
+
+/**
+ * 全部标记为已读
+ * @returns {Promise<{success: boolean}>}
+ */
+export const markAllAsRead = () => {
+  return request({
+    url: '/MessageRecord/MarkAllAsRead',
+    method: 'post'
+  })
+}
+
+/**
+ * 删除消息
+ * @param {number} id - 消息ID
+ * @returns {Promise<{success: boolean}>}
+ */
+export const deleteMessage = (id) => {
+  return request({
+    url: '/MessageRecord/Delete',
+    method: 'post',
+    params: { id }
+  })
+}
+
+/**
+ * 新增消息 (测试用)
+ * @param {Object} data - 消息数据
+ * @returns {Promise<{success: boolean}>}
+ */
+export const addMessage = (data) => {
+  return request({
+    url: '/MessageRecord/Add',
+    method: 'post',
+    data
+  })
+}