feat: 完善平台总后台模块

backend/api/internal/models/ec_order.go

@@ -0,0 +1,16 @@
+package models
+
+import "git.apinb.com/bsm-sdk/core/database"
+
+// EcOrder 对应 ec_order，保存电商订单与组织快照。
+type EcOrder struct {
+	Entity
+	OrderNo         string `gorm:"column:order_no;type:varchar(64);not null;uniqueIndex" json:"order_no"`
+	UserAccountID   uint64 `gorm:"column:user_account_id;not null;index" json:"user_account_id"`
+	GasStationID    uint64 `gorm:"column:gas_station_id;not null;default:0;index" json:"gas_station_id"`
+	DeliveryPointID uint64 `gorm:"column:delivery_point_id;not null;default:0;index" json:"delivery_point_id"`
+	TotalAmount     int64  `gorm:"column:total_amount;not null;default:0" json:"total_amount"`
+}
+
+func init()                              { database.AppendMigrate(&EcOrder{}) }
+func (table *EcOrder) TableName() string { return "ec_order" }