feat(pricing): 更新用户优惠券查询接口返回完整信息

- 修改 getUserCoupons 接口不再需要传入 userId 参数，从上下文获取当前登录用户
- 新增 UserCouponResp DTO 包含领取记录和优惠券配置的完整信息
- 更新 ICouponService 接口返回类型为 UserCouponResp 列表
- 在 Controller 层添加 getUserId 方法用于获取当前登录用户ID
- 实现完整的用户优惠券信息组装逻辑，包含领取时间、过期时间等记录信息

src/main/java/com/ycwl/basic/pricing/controller/PriceCalculationController.java

@@ -1,7 +1,9 @@
 package com.ycwl.basic.pricing.controller;
 
+import com.ycwl.basic.constant.BaseContextHandler;
 import com.ycwl.basic.utils.ApiResponse;
 import com.ycwl.basic.pricing.dto.*;
+import com.ycwl.basic.pricing.dto.resp.UserCouponResp;
 import com.ycwl.basic.pricing.service.ICouponService;
 import com.ycwl.basic.pricing.service.IPriceCalculationService;
 import lombok.RequiredArgsConstructor;
@@ -53,16 +55,37 @@ public class PriceCalculationController {
     }
     
     /**
-     * 查询用户可用优惠券
+     * 查询用户可用优惠券（包含领取记录信息）
      */
     @GetMapping("/coupons/my-coupons")
-    public ApiResponse<List<CouponInfo>> getUserCoupons(@RequestParam Long userId) {
+    public ApiResponse<List<UserCouponResp>> getUserCoupons() {
+        Long userId = getUserId();
+        if (userId == null) {
+            return ApiResponse.fail("用户未登录");
+        }
+
         log.info("查询用户可用优惠券: userId={}", userId);
-        
-        List<CouponInfo> coupons = couponService.getUserAvailableCoupons(userId);
-        
+
+        List<UserCouponResp> coupons = couponService.getUserAvailableCoupons(userId);
+
         log.info("用户可用优惠券数量: {}", coupons.size());
-        
+
         return ApiResponse.success(coupons);
     }
+
+    /**
+     * 获取当前登录用户ID
+     */
+    private Long getUserId() {
+        try {
+            String userIdStr = BaseContextHandler.getUserId();
+            if (userIdStr == null || userIdStr.isEmpty()) {
+                return null;
+            }
+            return Long.valueOf(userIdStr);
+        } catch (NumberFormatException e) {
+            log.warn("无法解析用户ID: {}", BaseContextHandler.getUserId());
+            return null;
+        }
+    }
 }

src/main/java/com/ycwl/basic/pricing/dto/resp/UserCouponResp.java

@@ -0,0 +1,89 @@
+package com.ycwl.basic.pricing.dto.resp;
+
+import com.ycwl.basic.pricing.enums.CouponStatus;
+import com.ycwl.basic.pricing.enums.CouponType;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.util.Date;
+
+/**
+ * 用户优惠券响应DTO（包含领取记录+优惠券配置）
+ */
+@Data
+public class UserCouponResp {
+
+    // ==================== 领取记录信息 ====================
+
+    /**
+     * 领取记录ID
+     */
+    private Long claimRecordId;
+
+    /**
+     * 领取时间
+     */
+    private Date claimTime;
+
+    /**
+     * 过期时间（根据领取时间+领取后有效期计算）
+     */
+    private Date expireTime;
+
+    /**
+     * 优惠券状态
+     */
+    private CouponStatus status;
+
+    /**
+     * 领取时的景区ID
+     */
+    private String claimScenicId;
+
+    // ==================== 优惠券配置信息 ====================
+
+    /**
+     * 优惠券ID
+     */
+    private Long couponId;
+
+    /**
+     * 优惠券名称
+     */
+    private String couponName;
+
+    /**
+     * 优惠类型
+     */
+    private CouponType couponType;
+
+    /**
+     * 优惠值（百分比时为折扣比例，固定金额时为具体金额）
+     */
+    private BigDecimal discountValue;
+
+    /**
+     * 最小使用金额（门槛）
+     */
+    private BigDecimal minAmount;
+
+    /**
+     * 最大优惠金额
+     */
+    private BigDecimal maxDiscount;
+
+    /**
+     * 适用景区ID（NULL表示不限景区）
+     */
+    private String scenicId;
+
+    /**
+     * 优惠券全局有效期开始时间
+     */
+    private Date validFrom;
+
+    /**
+     * 优惠券全局有效期结束时间
+     */
+    private Date validUntil;
+}

src/main/java/com/ycwl/basic/pricing/service/ICouponService.java

@@ -6,6 +6,7 @@ import com.ycwl.basic.pricing.dto.CouponUseResult;
 import com.ycwl.basic.pricing.dto.CouponClaimRequest;
 import com.ycwl.basic.pricing.dto.CouponClaimResult;
 import com.ycwl.basic.pricing.dto.ProductItem;
+import com.ycwl.basic.pricing.dto.resp.UserCouponResp;
 import com.ycwl.basic.pricing.entity.PriceCouponConfig;
 
 import java.math.BigDecimal;
@@ -55,12 +56,12 @@ public interface ICouponService {
     CouponUseResult useCoupon(CouponUseRequest request);
     
     /**
-     * 查询用户可用优惠券
-     * 
+     * 查询用户可用优惠券（包含领取记录信息）
+     *
      * @param userId 用户ID
-     * @return 可用优惠券列表
+     * @return 用户优惠券列表（包含领取记录+优惠券配置）
      */
-    List<CouponInfo> getUserAvailableCoupons(Long userId);
+    List<UserCouponResp> getUserAvailableCoupons(Long userId);
     
     /**
      * 领取优惠券（内部调用方法）

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

@@ -3,6 +3,7 @@ package com.ycwl.basic.pricing.service.impl;
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.ycwl.basic.pricing.dto.*;
+import com.ycwl.basic.pricing.dto.resp.UserCouponResp;
 import com.ycwl.basic.pricing.entity.PriceCouponClaimRecord;
 import com.ycwl.basic.pricing.entity.PriceCouponConfig;
 import com.ycwl.basic.pricing.enums.CouponStatus;
@@ -274,19 +275,43 @@ public class CouponServiceImpl implements ICouponService {
     }
     
     @Override
-    public List<CouponInfo> getUserAvailableCoupons(Long userId) {
+    public List<UserCouponResp> getUserAvailableCoupons(Long userId) {
         List<PriceCouponClaimRecord> records = couponClaimRecordMapper.selectUserAvailableCoupons(userId);
-        List<CouponInfo> coupons = new ArrayList<>();
-        
+        List<UserCouponResp> coupons = new ArrayList<>();
+
         for (PriceCouponClaimRecord record : records) {
             PriceCouponConfig config = couponConfigMapper.selectById(record.getCouponId());
             if (config != null) {
-                coupons.add(buildCouponInfo(config, null));
+                coupons.add(buildUserCouponResp(record, config));
             }
         }
-        
+
         return coupons;
     }
+
+    private UserCouponResp buildUserCouponResp(PriceCouponClaimRecord record, PriceCouponConfig config) {
+        UserCouponResp resp = new UserCouponResp();
+
+        // 领取记录信息
+        resp.setClaimRecordId(record.getId());
+        resp.setClaimTime(record.getClaimTime());
+        resp.setExpireTime(record.getExpireTime());
+        resp.setStatus(record.getStatus());
+        resp.setClaimScenicId(record.getScenicId());
+
+        // 优惠券配置信息
+        resp.setCouponId(config.getId());
+        resp.setCouponName(config.getCouponName());
+        resp.setCouponType(config.getCouponType());
+        resp.setDiscountValue(config.getDiscountValue());
+        resp.setMinAmount(config.getMinAmount());
+        resp.setMaxDiscount(config.getMaxDiscount());
+        resp.setScenicId(config.getScenicId());
+        resp.setValidFrom(config.getValidFrom());
+        resp.setValidUntil(config.getValidUntil());
+
+        return resp;
+    }
     
     private CouponInfo buildCouponInfo(PriceCouponConfig coupon, BigDecimal actualDiscountAmount) {
         CouponInfo info = new CouponInfo();