fix: 支付分退款查询路径也修正为/refund

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

haha-service/src/main/java/com/haha/service/payment/payscore/impl/WxPayScoreStrategy.java

@@ -658,7 +658,7 @@ public class WxPayScoreStrategy implements PayScoreStrategy {
         }
 
         try {
-            String url = PAY_SCORE_BASE_URL + "/" + outOrderNo + "/pay/refund/" + outRefundNo
+            String url = PAY_SCORE_BASE_URL + "/" + outOrderNo + "/refund/" + outRefundNo
                     + "?service_id=" + wxPayConfig.getServiceId()
                     + "&appid=" + wxPayConfig.getAppId();
             log.info("[微信支付分] 查询退款请求: url={}", url);