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

client/src/pages/MobileMePage.tsx

@@ -128,7 +128,7 @@ export function MobileMePage() {
           <MobileActionLink to="/mobile/leave" label="请假" icon="event_available" />
           <MobileActionLink to="/mobile/reimbursements" label="报销" icon="request_quote" />
           {canAccessPurchase ? <MobileActionLink to="/mobile/purchase-requests" label="采购" icon="shopping_cart" /> : null}
-          <MobileActionLink to="/mobile/approvals" label={canAccessApprovals ? "审批" : "审批进度"} icon="fact_check" />
+          <MobileActionLink to="/mobile/approvals" label={canAccessApprovals ? "待办" : "进度"} icon="fact_check" />
           {canAccessFinance ? <MobileActionLink to="/mobile#finance" label="财务" description="审批与付款状态" icon="account_balance_wallet" /> : null}
           {canAccessAssets ? <MobileActionLink to="/mobile/assets/scan" label="资产扫码" icon="inventory_2" /> : null}
           {canAccessProjects ? <MobileActionLink to="/mobile" label="项目动态" icon="workspaces" /> : null}