add agent vip renew

app/user/cmd/api/internal/logic/agent/activateagentmembershiplogic.go

@@ -66,6 +66,7 @@ func (l *ActivateAgentMembershipLogic) ActivateAgentMembership(req *types.AgentA
 			return nil, errors.Wrapf(xerr.NewErrCode(xerr.SERVER_COMMON_ERROR),
 				"禁止降级操作（当前等级：%s，请求等级：%s）", agentModel.LevelName, req.Type)
 		}
+		// 同等级视为续费，允许操作
 	}
 	outTradeNo := "A_" + l.svcCtx.AlipayService.GenerateOutTradeNo()
 	redisKey := fmt.Sprintf(types.AgentVipCacheKey, userID, outTradeNo)