feat(platform): center navigation on vehicle service

vehicle-data-platform/apps/web/src/pages/Dashboard.tsx

@@ -62,7 +62,7 @@ export function Dashboard({ onOpenVehicle, onOpenQuality }: { onOpenVehicle: (vi
 
   return (
     <div className="vp-page">
-      <PageHeader title="总览工作台" description="车辆在线、协议分布、数据质量和链路健康的统一入口" />
+      <PageHeader title="总览工作台" description="以车辆服务为中心汇总在线状态、数据来源覆盖、质量问题和链路健康" />
       <Spin spinning={loading}>
         <div className="vp-kpi-grid">
           {kpis.map((item) => (
@@ -74,12 +74,12 @@ export function Dashboard({ onOpenVehicle, onOpenQuality }: { onOpenVehicle: (vi
         </div>
         <Row gutter={16}>
           <Col span={14}>
-            <Card title="协议在线分布" bordered>
+            <Card title="数据来源在线分布" bordered>
               <Table
                 pagination={false}
                 dataSource={summary?.protocols ?? []}
                 columns={[
-                  { title: '协议', dataIndex: 'protocol' },
+                  { title: '数据来源', dataIndex: 'protocol' },
                   { title: '在线', dataIndex: 'online' },
                   { title: '总数', dataIndex: 'total' },
                   {