批量收回功能

internal/model/device_import_task.go

@@ -13,8 +13,8 @@ type DeviceImportTask struct {
 	gorm.Model
 	BaseModel      `gorm:"embedded"`
 	TaskNo         string            `gorm:"column:task_no;type:varchar(50);uniqueIndex:idx_device_import_task_no,where:deleted_at IS NULL;not null;comment:任务编号(唯一)" json:"task_no"`
-	OperationType  string            `gorm:"column:operation_type;type:varchar(32);not null;default:'import';comment:任务业务类型(import/assign_shop/assign_series)" json:"operation_type"`
-	TargetID       *uint             `gorm:"column:target_id;comment:批量分配目标店铺或套餐系列ID" json:"target_id"`
+	OperationType  string            `gorm:"column:operation_type;type:varchar(32);not null;default:'import';comment:任务业务类型(import/assign_shop/assign_series/recall)" json:"operation_type"`
+	TargetID       *uint             `gorm:"column:target_id;comment:批量分配目标店铺或套餐系列ID，回收任务为空" json:"target_id"`
 	OperatorType   int               `gorm:"column:operator_type;type:int;not null;default:0;comment:任务创建时操作者类型快照" json:"operator_type"`
 	OperatorShopID *uint             `gorm:"column:operator_shop_id;comment:任务创建时操作者店铺ID快照" json:"operator_shop_id"`
 	BatchNo        string            `gorm:"column:batch_no;type:varchar(100);comment:批次号" json:"batch_no"`