feat: 技术债务清理（支付配置动态化、API文档补全、轮询常量提取、废弃代码清理）

internal/service/device/binding.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/break/junhong_cmp_fiber/internal/model"
 	"github.com/break/junhong_cmp_fiber/internal/model/dto"
+	"github.com/break/junhong_cmp_fiber/pkg/constants"
 	"github.com/break/junhong_cmp_fiber/pkg/errors"
 	"github.com/break/junhong_cmp_fiber/pkg/logger"
 	"go.uber.org/zap"
@@ -56,8 +57,9 @@ func (s *Service) ListBindings(ctx context.Context, deviceID uint) (*dto.ListDev
 			IotCardID:    binding.IotCardID,
 			ICCID:        card.ICCID,
 			MSISDN:       card.MSISDN,
-			CarrierName:  card.CarrierName, // 直接使用 IotCard 的冗余字段
+			CarrierName:  card.CarrierName,
 			Status:       card.Status,
+			StatusName:   constants.GetIotCardStatusName(card.Status),
 			BindTime:     binding.BindTime,
 			IsCurrent:    binding.IsCurrent,
 		}