修复中控自更新触发与错误提示；实例页改为表格，带鱼屏宽度锁 1800。

Co-authored-by: Cursor <cursoragent@cursor.com>

templates/settings.html

@@ -145,7 +145,7 @@
       <div class="settings-card-head">
         <span class="settings-badge">Update</span>
         <h2>系统更新</h2>
-        <p class="muted">快速更新 = git pull + pm2 restart。中控本机更新；客户端经 Bridge 远程下发。有持仓时慎用。</p>
+        <p class="muted">快速更新 = git pull + pm2 restart。中控本机更新；客户端经 Bridge 远程下发。有持仓时慎用。中控更新日志：<code>logs/hub_update.log</code></p>
       </div>
 
       <div class="settings-backup-body">
@@ -183,7 +183,7 @@
 {% endblock %}
 {% block scripts %}
 <script src="{{ url_for('static', filename='settings_backup.js') }}?v=2"></script>
-<script src="{{ url_for('static', filename='settings_update.js') }}?v=1"></script>
+<script src="{{ url_for('static', filename='settings_update.js') }}?v=2"></script>
 <script>
   HubSettingsBackup.boot();
   HubSettingsUpdate.boot();