feat: add super order detail snapshot

backend/app/services/super.go

@@ -356,7 +356,20 @@ func (s *super) GetOrder(ctx context.Context, id int64) (*super_dto.SuperOrderDe
 		buyer = u
 	}
 
+	itemTbl, itemQ := models.OrderItemQuery.QueryContext(ctx)
+	orderItems, err := itemQ.Where(itemTbl.OrderID.Eq(o.ID)).Find()
+	if err != nil {
+		return nil, errorx.ErrDatabaseError.WithCause(err)
+	}
+
+	items := make([]super_dto.SuperOrderItemLine, 0, len(orderItems))
+	for _, it := range orderItems {
+		items = append(items, s.toSuperOrderItemLine(it))
+	}
+
 	item := s.toSuperOrderItem(o, tenant, buyer)
+	item.Snapshot = o.Snapshot.Data()
+	item.Items = items
 	return &super_dto.SuperOrderDetail{
 		Order:  &item,
 		Tenant: item.Tenant,
@@ -590,6 +603,15 @@ func (s *super) toSuperOrderItem(o *models.Order, tenant *models.Tenant, buyer *
 	return item
 }
 
+func (s *super) toSuperOrderItemLine(item *models.OrderItem) super_dto.SuperOrderItemLine {
+	return super_dto.SuperOrderItemLine{
+		ID:         item.ID,
+		ContentID:  item.ContentID,
+		AmountPaid: item.AmountPaid,
+		Snapshot:   item.Snapshot.Data(),
+	}
+}
+
 func (s *super) contentPriceMap(ctx context.Context, list []*models.Content) (map[int64]*models.ContentPrice, error) {
 	if len(list) == 0 {
 		return map[int64]*models.ContentPrice{}, nil