修改订单导出时间错误

server/dukang-api/src/modules/ops/admin-order-export.util.ts

@@ -48,9 +48,14 @@ function formatBenefitBrief(order: {
   return '';
 }
 
+/** 导出给运营看的时间：按上海时区，避免 toISOString() 落成 UTC（少 8 小时） */
+function formatShanghaiDateTime(value: Date): string {
+  return value.toLocaleString('sv-SE', { timeZone: 'Asia/Shanghai' });
+}
+
 export function formatExportDateTime(value?: Date | null): string {
   if (!value) return '';
-  return value.toISOString().slice(0, 19).replace('T', ' ');
+  return formatShanghaiDateTime(value);
 }
 
 export function mapOrderToExportRow(order: {
@@ -206,6 +211,6 @@ export async function buildOrdersPdf(rows: OrderExportRow[]): Promise<Buffer> {
 }
 
 export function buildExportFilename(format: 'xlsx' | 'pdf', count: number): string {
-  const stamp = new Date().toISOString().slice(0, 10);
+  const stamp = formatShanghaiDateTime(new Date()).slice(0, 10);
   return `订单导出_${stamp}_${count}条.${format}`;
 }