feat: add vehicle mileage statistics

vehicle-data-platform/apps/web/src/v2/layout/AppShell.tsx

@@ -20,6 +20,7 @@ const navigation = [
   { to: '/vehicles', label: '车辆查询', icon: IconSearch },
   { to: '/tracks', label: '轨迹回放', icon: IconMapPin },
   { to: '/history', label: '历史数据', icon: IconBarChartHStroked },
+  { to: '/statistics', label: '车辆统计', icon: IconBarChartHStroked },
   { to: '/alerts', label: '告警中心', icon: IconAlarm },
   { to: '/access', label: '接入管理', icon: IconBox }
 ];
@@ -29,6 +30,7 @@ const pageNames: Record<string, string> = {
   vehicles: '车辆查询',
   tracks: '轨迹回放',
   history: '历史数据',
+  statistics: '车辆统计',
   alerts: '告警中心',
   access: '接入管理',
   operations: '运维质量'