修复平台代管订单流程

backend/internal/modules/order/checkout_finalize.go

@@ -20,7 +20,9 @@ func (r *Repository) finalizeCheckout(tx *gorm.DB, order *model.RentalOrder, che
 	order.HandoffStatus = handoffStatusReturned
 	order.SettlementStatus = settlementStatusSettled
 	order.SettledAt = &now
-	order.OwnerSettledAt = &now
+	if !isPlatformSettlementOrder(*order) {
+		order.OwnerSettledAt = &now
+	}
 	if err := completeAssets(tx, listing, account); err != nil {
 		return nil, err
 	}
@@ -48,6 +50,16 @@ func (r *Repository) finalizeCheckout(tx *gorm.DB, order *model.RentalOrder, che
 }
 
 func appendCheckoutOwnerIncome(tx *gorm.DB, order *model.RentalOrder, settlement checkoutSettlement) error {
+	if isPlatformSettlementOrder(*order) {
+		amountCent := settlement.OwnerRentIncomeCent + settlement.DepositCompensationCent
+		order.OfflineSettlementAmountCent = amountCent
+		if amountCent > 0 {
+			order.OfflineSettlementStatus = offlineSettlementStatusPending
+		} else {
+			order.OfflineSettlementStatus = offlineSettlementStatusNone
+		}
+		return nil
+	}
 	orderID := order.ID
 	var ownerEntries []wallet.Entry
 	if settlement.OwnerRentIncomeCent > 0 {
@@ -102,6 +114,22 @@ func applyCheckoutSettlement(checkout *model.OrderCheckout, settlement checkoutS
 
 func appendCheckoutCompletedNotifications(tx *gorm.DB, order *model.RentalOrder, renterContent string) error {
 	orderID := order.ID
+	if isPlatformSettlementOrder(*order) {
+		if err := notification.Append(tx, notification.Entry{
+			UserID:  order.RenterID,
+			Type:    "settlement",
+			Title:   "订单已完成",
+			Content: renterContent,
+			BizType: "order",
+			BizID:   &orderID,
+		}); err != nil {
+			return err
+		}
+		if order.OfflineSettlementAmountCent > 0 {
+			return appendManagedAdminNotification(tx, *order, "settlement", "代管订单待线下结算", "订单已完成，请按线下流程向卖家转出结算金额并回填状态。")
+		}
+		return nil
+	}
 	return notification.Append(tx,
 		notification.Entry{
 			UserID:  order.RenterID,