R57 A1-A6：报销模板与差旅申请关联

client/src/pages/SystemSettingsPage.tsx

@@ -6,6 +6,7 @@ const ITEMS = [
   { to: "/people", title: "人员管理", description: "处理入职、转正、调岗、离职与档案。" },
   { to: "/system/approval-rules", title: "审批规则", description: "维护仍在使用的简单审批链与规则。" },
   { to: "/system/expense-standards", title: "费用标准", description: "维护报销费用类型上限与 warn/block 管控模式。" },
+  { to: "/system/reimbursement-templates", title: "报销模板", description: "维护差旅费、招待费、办公用品等常见报销模板。" },
   { to: "/system/master-data", title: "主数据", description: "维护费用、法体、成本中心等主数据。" },
   { to: "/system/notification-channels", title: "通知渠道", description: "继续保留 IM/邮件等补充通知渠道。" },
   { to: "/system/integrations/erp", title: "外部系统桥接", description: "查看财务与外部系统桥接能力及出入口。" },