实现报销费用政策与票据明细门禁（08-29-reimbursement-expense-policy-invoice-guard）

server/src/services/featureFlags/index.js

@@ -4,6 +4,7 @@ const FEATURE_FLAG_KEYS = {
   invoiceVerification: "invoice_verification",
   leaveHolidayCalendar: "leave_holiday_calendar",
   budgetPrecheck: "budget_precheck_v1",
+  reimbursementInvoiceGuard: "reimbursement_invoice_guard_v1",
   paymentBatch: "payment_batch_v1",
   portalHome: "portal_home_v1",
   globalSearch: "global_search_v1",
@@ -98,6 +99,10 @@ function resolveEnvGate(config, flagKey) {
     return Boolean(config.budgetPrecheckEnabled);
   }
 
+  if (flagKey === FEATURE_FLAG_KEYS.reimbursementInvoiceGuard) {
+    return Boolean(config.reimbursementInvoiceGuardEnabled);
+  }
+
   if (flagKey === FEATURE_FLAG_KEYS.paymentBatch) {
     return Boolean(config.paymentBatchEnabled);
   }