feat: added type field into warehouse model

printing/models.py

@@ -40,6 +40,14 @@ class PlateOrder(ModelBase):
         related_name='plate_orders_as_merchandiser',
         verbose_name='跟单员'
     )
+    designer = models.ForeignKey(
+        basic_models.Employee,
+        on_delete=models.PROTECT,
+        null=True,
+        blank=True,
+        related_name='plate_orders_as_designer',
+        verbose_name='设计师'
+    )
     
     # 客户和地址信息
     customer = models.ForeignKey(