refactor(voucher): 移除券码领取接口中的景区ID参数验证

- 删除 VoucherClaimReq 中的 scenicId 字段
- 移除券码领取接口中对景区ID的空值检查
- 更新查询条件，不再按景区ID过滤券码
- 修改错误提示信息为"券码不存在"
- 调整领券权限校验逻辑，使用券码关联的景区ID进行验证

src/main/java/com/ycwl/basic/pricing/dto/req/VoucherClaimReq.java

@@ -4,6 +4,5 @@ import lombok.Data;
 
 @Data
 public class VoucherClaimReq {
-    private Long scenicId;
     private String code;
 }

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

@@ -74,9 +74,6 @@ public void generateVoucherCodes(Long batchId, Long scenicId, Integer count) {
     @Override
 @Transactional
 public VoucherCodeResp claimVoucher(VoucherClaimReq req) {
-    if (req.getScenicId() == null) {
-        throw new BizException(400, "景区ID不能为空");
-    }
     if (!StringUtils.hasText(req.getCode())) {
         throw new BizException(400, "券码不能为空");
     }
@@ -86,19 +83,18 @@ public VoucherCodeResp claimVoucher(VoucherClaimReq req) {
     // 验证券码是否存在且未被领取
     LambdaQueryWrapper<PriceVoucherCode> wrapper = new LambdaQueryWrapper<>();
     wrapper.eq(PriceVoucherCode::getCode, req.getCode())
-            .eq(PriceVoucherCode::getScenicId, req.getScenicId())
             .eq(PriceVoucherCode::getDeleted, 0);
 
     PriceVoucherCode voucherCode = voucherCodeMapper.selectOne(wrapper);
     if (voucherCode == null) {
-        throw new BizException(400, "券码不存在或不属于该景区");
+        throw new BizException(400, "券码不存在");
     }
 
     if (!Objects.equals(voucherCode.getStatus(), VoucherCodeStatus.UNCLAIMED.getCode())) {
         throw new BizException(400, "券码已被领取或已使用");
     }
 
-    if (!canClaimVoucher(userId, req.getScenicId())) {
+    if (!canClaimVoucher(userId, voucherCode.getScenicId())) {
         throw new BizException(400, "该用户在此景区已领取过券码");
     }