feat: 完善平台总后台模块

backend/api/internal/models/delivery_task.go

@@ -0,0 +1,14 @@
+package models
+
+import "git.apinb.com/bsm-sdk/core/database"
+
+// DeliveryTask 对应 delivery_task，保存配送履约任务。
+type DeliveryTask struct {
+	Entity
+	EcOrderID       uint64 `gorm:"column:ec_order_id;not null;index" json:"ec_order_id"`
+	StaffAccountID  uint64 `gorm:"column:staff_account_id;not null;default:0;index" json:"staff_account_id"`
+	DeliveryPointID uint64 `gorm:"column:delivery_point_id;not null;index" json:"delivery_point_id"`
+}
+
+func init()                                   { database.AppendMigrate(&DeliveryTask{}) }
+func (table *DeliveryTask) TableName() string { return "delivery_task" }