refactor(coupon): 重构优惠券领取结果封装

- 在 CouponClaimResult 类中添加 PriceCouponConfig 类型的 coupon 字段
- 修改 success 静态方法，接收 PriceCouponConfig 对象作为参数
- 更新方法内部逻辑，使用 coupon 对象替代单独的 couponName 字段
- 调整 CouponServiceImpl 中的代码，适应新的 CouponClaimResult 结构

src/main/java/com/ycwl/basic/pricing/dto/CouponClaimResult.java

@@ -1,6 +1,7 @@
 package com.ycwl.basic.pricing.dto;
 
 import com.ycwl.basic.pricing.entity.PriceCouponClaimRecord;
+import com.ycwl.basic.pricing.entity.PriceCouponConfig;
 import lombok.Data;
 
 import java.util.Date;
@@ -55,16 +56,18 @@ public class CouponClaimResult {
      * 景区ID
      */
     private String scenicId;
+    private PriceCouponConfig coupon;
 
     /**
      * 创建成功结果
      */
-    public static CouponClaimResult success(PriceCouponClaimRecord record, String couponName) {
+    public static CouponClaimResult success(PriceCouponClaimRecord record, PriceCouponConfig coupon) {
         CouponClaimResult result = new CouponClaimResult();
+        result.coupon = coupon;
         result.success = true;
         result.claimRecordId = record.getId();
         result.couponId = record.getCouponId();
-        result.couponName = couponName;
+        result.couponName = coupon.getCouponName();
         result.claimTime = record.getClaimTime();
         result.userId = record.getUserId();
         result.scenicId = record.getScenicId();

src/main/java/com/ycwl/basic/pricing/service/impl/CouponServiceImpl.java

@@ -274,7 +274,7 @@ public class CouponServiceImpl implements ICouponService {
                     request.getUserId(), request.getCouponId(), claimRecord.getId());
             
             // 10. 返回成功结果
-            return CouponClaimResult.success(claimRecord, coupon.getCouponName());
+            return CouponClaimResult.success(claimRecord, coupon);
             
         } catch (Exception e) {
             log.error("领取优惠券失败: userId={}, couponId={}",