fix(hub): restore monitor host status panel after missing pref helpers

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

manual_trading_hub/static/app.js

@@ -73,6 +73,21 @@
   const HOST_RESOURCE_ALERT_THRESHOLD = 85;
   const hostResourceAlertLatch = { cpu: false, mem: false };
 
+  function loadBoolPref(key, defaultValue) {
+    try {
+      const raw = localStorage.getItem(key);
+      if (raw === "1" || raw === "true") return true;
+      if (raw === "0" || raw === "false") return false;
+    } catch (_) {}
+    return !!defaultValue;
+  }
+
+  function saveBoolPref(key, on) {
+    try {
+      localStorage.setItem(key, on ? "1" : "0");
+    } catch (_) {}
+  }
+
   function fmtHostBytes(n) {
     const v = Number(n);
     if (!Number.isFinite(v)) return "—";
@@ -153,13 +168,19 @@
     return parts.join(" · ") || "—";
   }
 
+  let hostStatusPanelInited = false;
+
   function initHostStatusPanel() {
     const panel = document.getElementById("host-status-panel");
     if (!panel) return;
-    panel.open = loadBoolPref(HOST_STATUS_OPEN_KEY, false);
-    panel.addEventListener("toggle", function () {
-      saveBoolPref(HOST_STATUS_OPEN_KEY, !!panel.open);
-    });
+    panel.classList.remove("hidden");
+    if (!hostStatusPanelInited) {
+      panel.open = loadBoolPref(HOST_STATUS_OPEN_KEY, false);
+      panel.addEventListener("toggle", function () {
+        saveBoolPref(HOST_STATUS_OPEN_KEY, !!panel.open);
+      });
+      hostStatusPanelInited = true;
+    }
   }
 
   function renderHostStatusBar(data) {