fix(hub): show monitor page instead of overlapping market page

page-market id contained substring monitor so setActiveNav kept both pages visible and hid the grid.

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

manual_trading_hub/static/index.html

@@ -250,6 +250,6 @@
   <div id="toast"></div>
   <script src="https://unpkg.com/lightweight-charts@4.2.0/dist/lightweight-charts.standalone.production.js"></script>
   <script src="/assets/chart.js?v=20260604-market-pnl-calc"></script>
-  <script src="/assets/app.js?v=20260604-market-pnl-calc"></script>
+  <script src="/assets/app.js?v=20260604-page-nav-fix"></script>
 </body>
 </html>