YT-1662：WMS、SCP、PDA所有界面有品番字段的位置，都要显示背番，同时WMS、SCP也要增加背番的筛选查询。

src/views/wms/purchasereceiptManage/supplierdeliver/purchaseMain/purchaseMain.data.ts

@@ -506,6 +506,17 @@ export const PurchaseDetail = useCrudSchemas(reactive<CrudSchema[]>([
       }
     }
   },
+  {
+    label: '背番',
+    field: 'backNumber',
+    table: {
+      width: 150
+    },
+    isSearch:true,
+    tableForm:{
+      disabled:true,
+    }
+  },
   {
     label: '行类型',
     field: 'poLineType',