refactor(recovery): trim low-value summary rows

docs/release-control/v6/internal/subsystems/storage-recovery.md

@@ -726,6 +726,8 @@ instead of behaving like a recovery-only executive summary.
 That support band should stay genuinely short, usually one or two compact
 rows rather than four-item micro reports, so the operator can scan the summary
 as orientation instead of reading each card like a dense checklist.
+When a second support row does not materially change triage, recovery should
+prefer a single support row over filling the card just because there is room.
 Those support rows should also stay signal-driven. Recovery summary cards
 should omit zero-value or low-value support rows like `Primary Item` or `Peak
 Day` when they do not materially improve operator triage, so the top strip

frontend-modern/src/components/Recovery/RecoverySummary.test.tsx

@@ -75,6 +75,7 @@ describe('RecoverySummary', () => {
     expect(screen.queryByText('<7d')).not.toBeInTheDocument();
     expect(screen.queryByText('<1h')).not.toBeInTheDocument();
     expect(screen.queryByText('<24h')).not.toBeInTheDocument();
+    expect(screen.queryByText('Days Active')).not.toBeInTheDocument();
     expect(screen.queryByText('Multi-platform')).not.toBeInTheDocument();
     expect(screen.queryByText('Primary Platform')).not.toBeInTheDocument();
     expect(screen.queryByText('Primary Item')).not.toBeInTheDocument();

frontend-modern/src/components/Recovery/RecoverySummary.tsx

@@ -133,25 +133,16 @@ export const RecoverySummary: Component<RecoverySummaryProps> = (props) => {
   );
 
   const footprintRows = createMemo(() => {
-    const rows: Array<{ label: string; value: string | number; valueClass?: string }> = [
+    return [
       { label: 'Platforms', value: platformCoverage().platformCount },
     ];
-    if (platformCoverage().multiPlatformCount > 0) {
-      rows.push({
-        label: 'Multi-platform',
-        value: platformCoverage().multiPlatformCount,
-      });
-    }
-    return rows.slice(0, 2);
   });
 
   const historyRows = createMemo(() => {
-    const rows: Array<{ label: string; value: string | number; valueClass?: string }> = [];
     if (activity().latestLabel) {
-      rows.push({ label: 'Latest Activity', value: activity().latestLabel });
+      return [{ label: 'Latest Activity', value: activity().latestLabel }];
     }
-    rows.push({ label: 'Days Active', value: activity().activeDays });
-    return rows.slice(0, 2);
+    return [{ label: 'Days Active', value: activity().activeDays }];
   });
 
   const MetricRows = (rowProps: {