✨ 结算单业务模式运输方式与编辑体验优化

预结算/收付款结算支持业务模式与运输方式展示导出；完善结算调整、对账导入与变更记录；组织合同初始流水号未填不再显示-1。

Co-authored-by: Cursor <cursoragent@cursor.com>

src/option/settlement/preSettlementForm.js

@@ -12,6 +12,8 @@ export const preSettlementFormFields = [
   { label: '付款方', prop: 'payerName', readonly: true },
   { label: '结算类型', prop: 'settlementType', readonly: true },
   { label: '结算金额', prop: 'settlementAmount', readonly: true, money: true },
+  { label: '业务模式', prop: 'businessModel', type: 'select', optionsKey: 'businessModelOptions' },
+  { label: '运输方式', prop: 'transportType', type: 'select', optionsKey: 'transportTypeOptions' },
   { label: '汇率日期', prop: 'exchangeRateDate', type: 'date' },
   { label: '结算汇率', prop: 'exchangeRate', type: 'number', class: 'exchange-rate-input' },
   { label: '本位币合计', prop: 'localSettlementAmount', readonly: true, money: true },
@@ -64,6 +66,8 @@ export const emptyPreSettlementForm = () => ({
   settlementType: 'payable',
   currency: 'RMB',
   settlementAmount: 0,
+  businessModel: '',
+  transportType: '',
   localCurrency: 'RMB',
   localSettlementAmount: 0,
   exchangeRateDate: '',