perf(web): pause hidden live polling

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

@@ -6,7 +6,7 @@ import { api } from '../../api/client';
 import type { HistoryDataResponse, HistoryDataRow, HistoryExportRequest, HistoryMetricDefinition, HistorySeriesResponse } from '../../api/types';
 import { buildHistorySeriesPanels, formatExportFileSize, formatHistoryValue, formatSeriesGrain, historyExportPollInterval, parseHistoryKeywords } from '../domain/history';
 import { InlineError } from '../shared/AsyncState';
-import { QUERY_MEMORY, retainPreviousPageWithinScope } from '../queryPolicy';
+import { LIVE_QUERY_POLICY, QUERY_MEMORY, retainPreviousPageWithinScope } from '../queryPolicy';
 import { usePlatformSession } from '../auth/AuthGate';
 import { canOperate } from '../auth/session';
 
@@ -50,7 +50,7 @@ function ExportJobsPanel() {
     queryKey: ['history-exports'],
     queryFn: ({ signal }) => api.historyExports(signal),
     refetchInterval: (current) => historyExportPollInterval(current.state.data),
-    refetchIntervalInBackground: false,
+    ...LIVE_QUERY_POLICY,
     gcTime: QUERY_MEMORY.highVolumeGcTime
   });
   const jobs = query.data ?? [];