fix bug

models/models.go

@@ -31,6 +31,7 @@ type CollectorOrder struct {
 	Ymd          int            `json:"ymd" gorm:"not null;index;comment:采集日期（年月日数字格式，如20260407）"`
 	Price        float64        `json:"price" gorm:"type:decimal(10,4);not null;default:0;comment:委托价格"`
 	Volume       int            `json:"volume" gorm:"not null;default:0;comment:委托数量"`
+	OpenPrice    float64        `json:"open_price" gorm:"type:decimal(10,4);not null;default:0;column:open_price;comment:开仓价格"`
 	TradedPrice  float64        `json:"traded_price" gorm:"type:decimal(10,4);not null;default:0;column:traded_price;comment:成交均价"`
 	TradedVolume int            `json:"traded_volume" gorm:"not null;default:0;column:traded_volume;comment:成交数量"`
 	OrderStatus  int            `json:"order_status" gorm:"not null;default:0;column:order_status;comment:订单状态"`