总览名称旁增加条件单标签，无仓时持仓列显示触发短文案。

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

templates/base.html

@@ -4,7 +4,7 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <title>{% block title %}期权中控{% endblock %}</title>
-  <link rel="stylesheet" href="{{ url_for('static', filename='hub.css') }}?v=20">
+  <link rel="stylesheet" href="{{ url_for('static', filename='hub.css') }}?v=21">
 </head>
 <body class="{% if request.path.startswith('/login') %}page-login{% elif request.path.startswith('/desk') %}page-desk{% elif request.path.startswith('/stats') %}page-stats{% elif request.path.startswith('/instances') %}page-instances{% elif request.path == '/' %}page-dashboard{% endif %}">
   {% if session.get('logged_in') %}

templates/dashboard.html

@@ -15,6 +15,6 @@
 <div id="overview-grid"></div>
 {% endblock %}
 {% block scripts %}
-<script src="{{ url_for('static', filename='hub.js') }}?v=19"></script>
+<script src="{{ url_for('static', filename='hub.js') }}?v=20"></script>
 <script>HubOverview.boot();</script>
 {% endblock %}