feat(store): 新增店铺运营活动实体映射配置

- 创建 StoreOperationalActivity 实体的 MyBatis 映射文件
- 定义基础结果映射 BaseResultMap，包含活动各项属性
- 配置通用查询列 SQL 片段 Base_Column_List
- 设置命名空间为 shop.alien.mapper.storePlantform.StoreOperationalActivityMapper
- 添加完整的字段映射支持，包括时间、状态及用户信息字段

alien-entity/src/main/resources/mapper/storePlatform/StoreOperationalActivityMapper.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="shop.alien.mapper.storePlantform.StoreOperationalActivityMapper">
+
+    <!-- 通用查询映射结果 -->
+    <resultMap id="BaseResultMap" type="shop.alien.entity.storePlatform.StoreOperationalActivity">
+        <id column="id" property="id" />
+        <result column="store_id" property="storeId" />
+        <result column="activity_name" property="activityName" />
+        <result column="promotional_image" property="promotionalImage" />
+        <result column="start_time" property="startTime" />
+        <result column="end_time" property="endTime" />
+        <result column="participation_limit" property="participationLimit" />
+        <result column="activity_rule" property="activityRule" />
+        <result column="reward_type" property="rewardType" />
+        <result column="coupon_id" property="couponId" />
+        <result column="coupon_quantity" property="couponQuantity" />
+        <result column="status" property="status" />
+        <result column="delete_flag" property="deleteFlag" />
+        <result column="created_time" property="createdTime" />
+        <result column="created_user_id" property="createdUserId" />
+        <result column="updated_time" property="updatedTime" />
+        <result column="updated_user_id" property="updatedUserId" />
+    </resultMap>
+
+    <!-- 通用查询结果列 -->
+    <sql id="Base_Column_List">
+        id, store_id, activity_name, promotional_image, start_time, end_time, participation_limit, activity_rule, reward_type, coupon_id, coupon_quantity, status, delete_flag, created_time, created_user_id, updated_time, updated_user_id
+    </sql>
+
+</mapper>
+