总览持仓列去掉 Put/Call 红绿色，改回中性文案。

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

templates/dashboard.html

@@ -15,6 +15,6 @@
 <div id="overview-grid"></div>
 {% endblock %}
 {% block scripts %}
-<script src="{{ url_for('static', filename='hub.js') }}?v=23"></script>
+<script src="{{ url_for('static', filename='hub.js') }}?v=24"></script>
 <script>HubOverview.boot();</script>
 {% endblock %}