收口导航与报销审批入口（05-30-nav-reimbursement-approval-surface）

server/src/routes/featureFlags.js

@@ -124,7 +124,6 @@ const FEATURE_FLAG_SNAPSHOT_SCHEMA = {
 };
 
 const BACKUP_NAVIGATION_KEYS = new Set([
-  "purchaseRequests",
   "travelRequests",
   "budgets",
   "paymentBatches",