refactor: 菜单栏角色化降噪（role-based-navigation-simplification）

client/src/pages/NotificationChannelsPage.tsx

@@ -75,7 +75,7 @@ const ROLE_OPTIONS = [
 ] as const;
 
 const DOMAIN_SCOPE_OPTIONS = [
-  { value: "workflow", label: "审批待办" },
+  { value: "workflow", label: "待我处理" },
   { value: "reimbursement", label: "报销" },
   { value: "leave", label: "请假" },
   { value: "procurement", label: "采购" },