feat: 添加支付条件字段以支持合同信息扩展

src/views/purchasingManage/purchaseOrder/components/addDialogNew.vue

@@ -923,7 +923,9 @@
         endSettlementDate: '',
         startSettlementDate: '',
         receiptDate: 1,
-        contractStartDate:''
+        contractStartDate:'',
+        paymentConditionId: '',
+        paymentConditionName: ''
       };
 
       return {