Add instance data dashboard (default off).

Read-only overview of live orders, key monitors, and strategy; show options/hedge only when present. Toggle via system settings nav prefs.

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

lib/common/static/instance_settings_prefs.js

@@ -19,8 +19,18 @@
     return data;
   }
 
+  /** 默认关闭的导航开关:缺失时按 false,不能用 !== false */
+  const NAV_DEFAULT_OFF = { show_nav_dashboard: true };
+
+  function navPrefShow(display, key) {
+    if (!key) return true;
+    if (NAV_DEFAULT_OFF[key]) return display[key] === true;
+    return display[key] !== false;
+  }
+
   function applyDisplayToNav(display) {
     const map = {
+      dashboard: "show_nav_dashboard",
       strategy: "show_nav_strategy",
       strategy_records: "show_nav_strategy_records",
       records: "show_nav_records",
@@ -37,7 +47,7 @@
       const tab = a.getAttribute("data-embed-tab") || (a.getAttribute("href") || "").replace(/^\//, "").split("?")[0];
       const key = map[tab];
       if (!key) return;
-      const show = display[key] !== false;
+      const show = navPrefShow(display, key);
       a.classList.toggle("nav-hidden", !show);
       a.style.display = show ? "" : "none";
     });
@@ -47,6 +57,7 @@
   function pageNavAllowed(tab) {
     const d = DISPLAY();
     const map = {
+      dashboard: "show_nav_dashboard",
       strategy: "show_nav_strategy",
       strategy_records: "show_nav_strategy_records",
       records: "show_nav_records",
@@ -61,7 +72,7 @@
     };
     const key = map[tab];
     if (!key) return true;
-    return d[key] !== false;
+    return navPrefShow(d, key);
   }
 
   function displayPrefsRoot() {
@@ -129,7 +140,9 @@
           const cb = document.createElement("input");
           cb.type = "checkbox";
           cb.dataset.prefKey = item.key;
-          cb.checked = display[item.key] !== false;
+          cb.checked = NAV_DEFAULT_OFF[item.key]
+            ? display[item.key] === true
+            : display[item.key] !== false;
           label.appendChild(cb);
           label.appendChild(document.createTextNode(" " + item.label));
           grid.appendChild(label);