feat: EOD 23:15 seal + midnight seed shell for video/fans

Move daily snapshot/fans to 23:15 and add 00:01 seed that clones
last_completed ok=1 rows into today without advancing completed.
Evening runs force through seed markers; growth previous is per-aid
adjacent. Home shows short-update clock + 全站数据 date, and 收录视频
counts.

reaction_board/web/static/views/home.js

@@ -1,8 +1,8 @@
 import { api } from "../api.js";
 import { emptyState, mediaCard } from "../components.js";
 import {
-  escapeAttr, escapeHtml, formatCount, formatDelta,
-  formatPercent, formatScore,
+  escapeAttr, escapeHtml, formatClock, formatCount, formatDataDate,
+  formatDelta, formatPercent, formatScore,
 } from "../format.js";
 import { canAccessProtected } from "../session.js";
 
@@ -55,6 +55,11 @@ export async function renderHome(root) {
     ? formatCount(overview.initial_import_count)
     : formatCount(overview.added_today);
   const activeCount = overview.counts?.active || 0;
+  const totalCount = overview.counts?.total
+    ?? ((overview.counts?.active || 0)
+      + (overview.counts?.unfaved || 0)
+      + (overview.counts?.removed || 0)
+      + (overview.counts?.dropped || 0));
   const pending = overview.counts?.candidates_pending || 0;
   // 候选提示仅对已登录（或未启用鉴权）用户可见，访客不展示运行期信息。
   const showCandidates = pending > 0 && canAccessProtected();
@@ -66,12 +71,14 @@ export async function renderHome(root) {
   const growthEmptyHint = growthDays <= 1
     ? "当前快照不足，完成至少 2 天快照后即可显示播放增量。"
     : `需要至少 ${growthDays + 1} 天快照才能计算近 ${growthDays} 日增长。`;
+  const updatedLabel = formatClock(overview.updated_at);
+  const dataDateLabel = formatDataDate(overview.data_date);
 
   root.innerHTML = `<section class="page home-page">
     <header class="page-head home-head">
       <div>
         <h1>最新动态</h1>
-        <p class="page-sub">收录视频 ${formatCount(activeCount)}</p>
+        <p class="page-sub">更新：${escapeHtml(updatedLabel)} / 全站数据：${escapeHtml(dataDateLabel)}</p>
       </div>
       <button class="icon-button" id="refresh-home" type="button" title="刷新">刷新</button>
     </header>
@@ -86,7 +93,7 @@ export async function renderHome(root) {
       ${statChip("7 日粉丝变化", fans?.delta_7d === null || fans?.delta_7d === undefined ? "—" : formatDelta(fans.delta_7d), {
         href: "/fans",
       })}
-      ${statChip("数据日期", escapeHtml(overview.data_date || "—"))}
+      ${statChip("收录视频", `${formatCount(activeCount)} / ${formatCount(totalCount)}`)}
     </div>
 
     ${showCandidates ? `<a class="notice-row" href="/candidates">