feat(G1,P16A,P16B): 收口主数据核心与节假日日历增强

server/src/services/featureFlags/index.js

@@ -1,6 +1,7 @@
 const FEATURE_FLAG_KEYS = {
   erpSync: "erp_sync",
   invoiceVerification: "invoice_verification",
+  leaveHolidayCalendar: "leave_holiday_calendar",
 };
 
 const FEATURE_FLAG_KEY_LIST = Object.freeze(Object.values(FEATURE_FLAG_KEYS));
@@ -62,6 +63,10 @@ function resolveEnvGate(config, flagKey) {
     return Boolean(config.invoiceVerificationEnabled);
   }
 
+  if (flagKey === FEATURE_FLAG_KEYS.leaveHolidayCalendar) {
+    return Boolean(config.leaveHolidayCalendarEnabled);
+  }
+
   return false;
 }