feat: support pre_sales_order convert to sales_order api

business/models.py

@@ -273,6 +273,11 @@ class SalesOrder(OrderItemsAggregationMixin, OrderDirectionMixin, OrderCounterpa
         verbose_name='状态',
     )
     remarks = models.TextField(blank=True, null=True, verbose_name='备注')
+    from_pre_sales_order_id = models.BigIntegerField(
+        blank=True,
+        null=True,
+        verbose_name='来源预销售单ID',
+    )
 
     def __str__(self):
         order_id = self.human_id or str(self.id)