feat(platform): clarify customer data export flow

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

@@ -41,11 +41,11 @@ const navGroups = [
   {
     title: '轨迹里程',
     audience: '客户',
-    description: '回放轨迹、核对里程、查询历史',
+    description: '回放轨迹、核对里程、导出数据',
     items: [
       { itemKey: 'history', text: '轨迹回放', icon: <IconMapPin /> },
       { itemKey: 'mileage', text: '里程统计', icon: <IconBarChartHStroked /> },
-      { itemKey: 'history-query', text: '历史数据', icon: <IconHistogram /> }
+      { itemKey: 'history-query', text: '数据导出', icon: <IconHistogram /> }
     ]
   },
   {
@@ -152,7 +152,7 @@ export function AppShell({
     { label: '监控', ariaLabel: '顶部实时监控', page: 'realtime' as const },
     { label: '轨迹', ariaLabel: '顶部轨迹回放', page: 'history' as const },
     { label: '里程', ariaLabel: '顶部里程统计', page: 'mileage' as const },
-    { label: '历史', ariaLabel: '顶部历史数据', page: 'history-query' as const },
+    { label: '导出', ariaLabel: '顶部数据导出', page: 'history-query' as const },
     { label: '告警', ariaLabel: '顶部告警事件', page: 'alert-events' as const }
   ];