feat: enhance operations dashboard and reporting controls

src/apps/admin/AdminAnalyticsPage.tsx

@@ -607,12 +607,10 @@ function MatrixMetric({ metric, zeroWhenEmpty = false }: { metric?: SignatureCha
   if (zeroWhenEmpty && total === 0) return <span className="signature-quality-matrix__zero">0</span>;
 
   return (
-    <div className="signature-quality-matrix__metric">
-      <strong>{total.toLocaleString('zh-CN')} 次</strong>
-      <span className={`signature-quality-matrix__rate ${successRateClassName(successRate)}`}>
-        {successRate.toFixed(1)}%
-      </span>
-      <small>{formatDuration(metric?.averageArrivalMs)}</small>
+    <div className={`signature-quality-matrix__metric signature-quality-matrix__metric--${successRateTone(successRate)}`}>
+      <div><small>通道提交</small><strong>{total.toLocaleString('zh-CN')} 次</strong></div>
+      <div><small>成功率</small><span className={`signature-quality-matrix__rate ${successRateClassName(successRate)}`}>{successRate.toFixed(1)}%</span></div>
+      <div><small>平均到达</small><span>{formatDuration(metric?.averageArrivalMs)}</span></div>
       {(metric?.submitFailureCount ?? 0) > 0 ? <em>提交失败 {metric?.submitFailureCount}</em> : null}
     </div>
   );