修复仪表盘与节点详情「24 小时网络趋势」误按速率展示：改为 OpenResty 入/出站小时流量与近 24 小时总量摘要，Y 轴与 tooltip 自动换算 B/KB/MB/GB。

frontend/app/(main)/nodes/components/disk-io-trend-chart.tsx

@@ -1,13 +1,7 @@
 'use client';
 
 import {TrendChart} from '@/components/data/trend-chart';
-import {
-  Card,
-  CardContent,
-  CardDescription,
-  CardHeader,
-  CardTitle,
-} from '@/components/ui/card';
+import {Card, CardContent, CardDescription, CardHeader, CardTitle,} from '@/components/ui/card';
 import type {DiskIOTrendPoint} from '@/lib/services/openflare';
 
 import {formatBytes, formatTrendHour} from '../../components/dashboard/dashboard-utils';
@@ -30,6 +24,8 @@ export function DiskIOTrendChart({
       <CardContent>
         <TrendChart
           labels={points.map((point) => formatTrendHour(point.bucket_started_at))}
+          summaryScope="total"
+          summaryHint="近 24 小时"
           yAxisValueFormatter={formatBytes}
           series={[
             {
@@ -51,4 +47,4 @@ export function DiskIOTrendChart({
       </CardContent>
     </Card>
   );
-}
+}