feat(pricing): 实现优惠券打印功能

- 新增 AppVoucherController 控制器处理打印请求
- 实现 VoucherPrintService 接口和 VoucherPrintServiceImpl 实现类
- 添加 VoucherPrintReq 请求对象和 VoucherPrintResp 响应对象
- 创建 VoucherPrintRecord 实体和对应的 Mapper
- 更新 PriceVoucherCodeMapper 接口，添加随机获取未打印券码的方法
- 实现分布式锁机制防止重复打印- 生成流水号并记录打印状态

src/main/resources/mapper/VoucherPrintRecordMapper.xml

@@ -0,0 +1,52 @@
+<?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="com.ycwl.basic.pricing.mapper.VoucherPrintRecordMapper">
+
+    <resultMap id="BaseResultMap" type="com.ycwl.basic.pricing.entity.VoucherPrintRecord">
+        <id column="id" property="id" jdbcType="BIGINT"/>
+        <result column="code" property="code" jdbcType="VARCHAR"/>
+        <result column="face_id" property="faceId" jdbcType="BIGINT"/>
+        <result column="broker_id" property="brokerId" jdbcType="BIGINT"/>
+        <result column="scenic_id" property="scenicId" jdbcType="BIGINT"/>
+        <result column="voucher_code_id" property="voucherCodeId" jdbcType="BIGINT"/>
+        <result column="voucher_code" property="voucherCode" jdbcType="VARCHAR"/>
+        <result column="print_status" property="printStatus" jdbcType="TINYINT"/>
+        <result column="error_message" property="errorMessage" jdbcType="VARCHAR"/>
+        <result column="create_time" property="createTime" jdbcType="TIMESTAMP"/>
+        <result column="update_time" property="updateTime" jdbcType="TIMESTAMP"/>
+        <result column="deleted" property="deleted" jdbcType="TINYINT"/>
+        <result column="deleted_at" property="deletedAt" jdbcType="TIMESTAMP"/>
+    </resultMap>
+
+    <sql id="Base_Column_List">
+        id, code, face_id, broker_id, scenic_id, voucher_code_id, voucher_code, 
+        print_status, error_message, create_time, update_time, deleted, deleted_at
+    </sql>
+
+    <select id="selectByFaceBrokerScenic" resultMap="BaseResultMap">
+        SELECT <include refid="Base_Column_List"/>
+        FROM voucher_print_record
+        WHERE face_id = #{faceId} 
+          AND broker_id = #{brokerId} 
+          AND scenic_id = #{scenicId}
+          AND deleted = 0
+        LIMIT 1
+    </select>
+
+    <select id="selectByVoucherCodeId" resultMap="BaseResultMap">
+        SELECT <include refid="Base_Column_List"/>
+        FROM voucher_print_record
+        WHERE voucher_code_id = #{voucherCodeId}
+          AND deleted = 0
+        LIMIT 1
+    </select>
+
+    <update id="updatePrintStatus">
+        UPDATE voucher_print_record
+        SET print_status = #{printStatus},
+            error_message = #{errorMessage},
+            update_time = NOW()
+        WHERE id = #{id}
+    </update>
+
+</mapper>