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

client/src/pages/MobileApprovalsPage.tsx

@@ -1033,7 +1033,7 @@ export function MobileApprovalsPage() {
         />
       ) : (
         <PageHeader
-          title={canAccessRemoteApprovals ? "审批" : "审批进度"}
+          title={canAccessRemoteApprovals ? "待办" : "进度"}
           subtitle={canAccessRemoteApprovals ? "处理待办，查看已处理。" : "查看我发起的申请进度。"}
         />
       )}