feat(web): unify vehicle workspace identity

vehicle-data-platform/apps/web/src/v2/pages/VehicleSearchWorkspace.tsx

@@ -182,6 +182,8 @@ export default function VehicleSearchWorkspace() {
       {!mobileLayout || administrator ? <WorkspaceCommandBar
         className={`v2-vehicle-command-bar${mobileLayout ? ' is-mobile-admin' : ''}`}
         ariaLabel={mobileLayout ? '车辆主档操作' : '查车操作'}
+        eyebrow={mobileLayout ? '车辆治理' : '车辆目录'}
+        icon={mobileLayout ? <IconBox /> : <IconSearch />}
         title={mobileLayout ? '车辆主档' : '车辆快速定位'}
         description={mobileLayout ? '批量维护品牌、车型与运营属性' : '车牌、VIN 或手机号快速查车'}
         status={mobileLayout ? undefined : candidates.isPending ? '正在读取授权范围' : vehicleScope}