Show trading playbook in hub strategy docs.

Add an 执行手册 tab that renders docs/交易执行手册-期权与Gate.md as the default strategy view.

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

manual_trading_hub/static/index.html

@@ -960,7 +960,7 @@
       <div class="page-head strategy-page-head">
         <div>
           <h1><span class="head-tag">STR</span> 策略说明</h1>
-          <p class="page-desc">策略正文(带目录) · 执行清单(打印对照) · 三所切换</p>
+          <p class="page-desc">执行手册 · 三所策略正文(带目录) · 执行清单(打印对照)</p>
         </div>
         <div class="strategy-page-actions no-print">
           <button type="button" id="strategy-btn-download" class="ghost">下载 HTML</button>
@@ -1405,7 +1405,7 @@
   <script src="/assets/quotes.js?v=20260717-quotes-feed"></script>
   <script src="/assets/funds.js?v=20260717-funds-scroll-fix"></script>
   <script src="/assets/dashboard.js?v=20260720-dash-sl-tp"></script>
-  <script src="/assets/strategy.js?v=8"></script>
+  <script src="/assets/strategy.js?v=9"></script>
   <script src="/assets/help.js?v=1"></script>
   <script src="/assets/logs.js?v=1"></script>
   <script src="/assets/ai_review_render.js?v=3"></script>