彻底优化数据库字段

backend/internal/modules/order/dto.go

@@ -20,9 +20,8 @@ type OrderDTO struct {
 	LoginPlatform          string         `json:"login_platform"`
 	RentedAt               *time.Time     `json:"rented_at"`
 	EstimatedDurationHours int            `json:"estimated_duration_hours"`
-	RentStartAt            *time.Time     `json:"rent_start_at"`
-	RentEndAt              *time.Time     `json:"rent_end_at"`
 	RentAmount             float64        `json:"rent_amount"`
+	OwnerRentAmount        float64        `json:"owner_rent_amount"`
 	DepositAmount          float64        `json:"deposit_amount"`
 	PlatformFee            float64        `json:"platform_fee"`
 	AccountSnapshot        datatypes.JSON `json:"account_snapshot"`
@@ -90,6 +89,8 @@ type CheckoutDTO struct {
 	InitiatedBy           uint64     `json:"initiated_by"`
 	Status                string     `json:"status"`
 	RentAmount            float64    `json:"rent_amount"`
+	OwnerRentAmount       float64    `json:"owner_rent_amount"`
+	PlatformFee           float64    `json:"platform_fee"`
 	DepositAmount         float64    `json:"deposit_amount"`
 	ConsumableAmount      float64    `json:"consumable_amount"`
 	CoinConsumedM         float64    `json:"coin_consumed_m"`