feat(web): add interactions-per-hour stat to up page

reaction_board/web/static/views/up.js

@@ -58,6 +58,7 @@ export async function renderUp(root, { params, query }) {
       <div><span>视频数</span><strong>${formatCount(up.video_count)}</strong></div>
       <div><span>总时长</span><strong>${up.content_hours == null ? "—" : `${formatCount(up.content_hours)} 小时`}</strong></div>
       <div><span>播放/小时</span><strong>${formatCount(up.views_per_hour)}</strong></div>
+      <div><span>互动/小时</span><strong>${formatCount(up.interactions_per_hour)}</strong></div>
       <div><span>总播放</span><strong>${formatCount(up.total_views)}</strong></div>
       <div><span>平均播放</span><strong>${formatCount(up.avg_views)}</strong></div>
       <div><span>总互动</span><strong>${formatCount(up.total_interactions)}</strong></div>