fix: 冒烟修复（支付响应解析/会员空指针/幂等回调返回 success）

styleagent/controller/member_controller.go

@@ -90,7 +90,8 @@ func MemberNotify(r *ghttp.Request) {
 	_ = dao.PayNotifyLog.Insert(ctx, &entity.PayNotifyLog{
 		OrderNo: orderNo, Body: body, Sign: hash, RemoteIp: remoteIP, Status: state,
 	})
-	if err != nil || state != "ok" {
+	// duplicate（幂等重复回调）同样返回 success，避免支付渠道无限重试
+	if err != nil || state == "no_order" {
 		r.Response.Write("fail")
 		r.ExitAll()
 		return

styleagent/payment/gateway.go

@@ -5,6 +5,7 @@ import (
 	"crypto/md5"
 	"crypto/rand"
 	"encoding/hex"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"sort"
@@ -65,7 +66,13 @@ func CreateOrder(ctx context.Context, orderNo string, amountFen int) (payURL str
 		Errmsg  string `json:"errmsg"`
 		Url     string `json:"url"`
 	}
-	if _, err := g.Client().SetTimeout(10 * time.Second).Post(context.Background(), cfg.ApiBase+"/payment/do.html", params, &resp); err != nil {
+	// 注意：Post 的最后一个参数不会自动解析响应体，需手动读取后反序列化
+	respRaw, err := g.Client().SetTimeout(10 * time.Second).Post(context.Background(), cfg.ApiBase+"/payment/do.html", params)
+	if err != nil {
+		return "", fmt.Errorf("虎皮棋下单失败: %w", err)
+	}
+	defer respRaw.Close()
+	if err := json.Unmarshal(respRaw.ReadAll(), &resp); err != nil {
 		return "", fmt.Errorf("虎皮棋下单失败: %w", err)
 	}
 	if resp.Errcode != 0 {

styleagent/service/member_service.go

@@ -101,7 +101,11 @@ func (s *memberService) HandlePaidNotify(ctx context.Context, orderNo, tradeNo,
 		days = plan.DurationDays
 	}
 	um, _ := dao.UserMember.GetByUser(ctx, order.UserId)
-	expireAt := NextExpire(um.ExpireAt, days)
+	var oldExpire *gtime.Time
+	if um != nil {
+		oldExpire = um.ExpireAt
+	}
+	expireAt := NextExpire(oldExpire, days)
 	if err := dao.UserMember.Upsert(ctx, order.UserId, order.PlanId, expireAt, consts.MemberSourceVipPay); err != nil {
 		return "no_order", err
 	}