feat: add hub fund overview tab with 180-day equity curves

Add /funds page for total and per-account balance (funding+trading), drawdown, and daily snapshots from monitor board aggregation.

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

manual_trading_hub/static/app.js

@@ -625,6 +625,7 @@
     const p = window.location.pathname.replace(/\/$/, "") || "/monitor";
     if (p.includes("settings")) return "settings";
     if (p.includes("archive")) return "archive";
+    if (p.includes("funds")) return "funds";
     if (p.includes("market")) return "market";
     if (p.includes("/ai")) return "ai";
     return "monitor";
@@ -633,6 +634,7 @@
   function pageElementId(page) {
     if (page === "settings") return "page-settings";
     if (page === "archive") return "page-archive";
+    if (page === "funds") return "page-funds";
     if (page === "market") return "page-market";
     if (page === "ai") return "page-ai";
     return "page-monitor";
@@ -662,6 +664,11 @@
     } else if (window.hubArchivePage && window.hubArchivePage.destroy) {
       window.hubArchivePage.destroy();
     }
+    if (page === "funds" && window.hubFundsPage) {
+      window.hubFundsPage.init();
+    } else if (window.hubFundsPage && window.hubFundsPage.destroy) {
+      window.hubFundsPage.destroy();
+    }
     if (page === "market" && window.hubMarketChart) {
       window.hubMarketChart.init();
     } else if (window.hubMarketChart) {