Match options branding: title prefix and ETH/BTC header quotes.

Use 「加密货币 | OKX 对冲」 and show live top-right ETHUSDT/BTCUSDT quotes like the options instance.

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

lib/instance/templates/index.html

@@ -19,7 +19,7 @@
     <link rel="manifest" href="/static/icons/manifest.webmanifest">
     <title>{{ pwa_app_name }}</title>
     <link rel="stylesheet" href="/static/instance_page.css?v=13">
-    <link rel="stylesheet" href="/static/instance_theme.css?v=121">
+    <link rel="stylesheet" href="/static/instance_theme.css?v=122">
 
 </head>
 <body
@@ -150,9 +150,7 @@
 </div>
 {% endmacro %}
 <div class="container">
-    <div class="header">
-        <h1>okx对冲</h1>
-    </div>
+    {% include 'instance_brand_header.html' %}
     <div class="top-nav">
         {% if hedge_plan_nav_visible and display.show_nav_hedge_plan %}
         <a href="/hedge-plan" class="{% if page == 'hedge_plan' %}active{% endif %}">{% if hedge_plan_show_options_options %}期期对冲{% else %}永期对冲{% endif %}</a>
@@ -2091,5 +2089,6 @@ document.addEventListener("DOMContentLoaded", function () {
 {% endif %}
 </script>
 <script src="/static/instance_settings_prefs.js?v=22"></script>
+<script src="/static/header_live_quotes.js?v=1"></script>
 </body>
 </html>