fix(hub): restore desktop monitor layout in PWA

Split mobile AI layout from viewport-only mobile detection so standalone desktop app uses full monitor cards again.

manual_trading_hub/static/app.js

@@ -899,9 +899,20 @@
     return (settingsCache?.exchanges || []).filter((x) => x.enabled);
   }
 
+  /** 窄屏布局：仅按视口宽度，监控区/行情等共用 */
   function isMobileLayout() {
-    if (window.matchMedia("(max-width: 720px)").matches) return true;
-    if (window.matchMedia("(display-mode: standalone)").matches) return true;
+    return window.matchMedia("(max-width: 720px)").matches;
+  }
+
+  /** AI 教练手机布局：窄屏或手机 PWA（桌面安装的 App 仍走桌面布局） */
+  function isMobileAiLayout() {
+    if (isMobileLayout()) return true;
+    if (
+      window.matchMedia("(display-mode: standalone)").matches &&
+      window.matchMedia("(max-width: 960px)").matches
+    ) {
+      return true;
+    }
     if (window.navigator && window.navigator.standalone === true) return true;
     return false;
   }
@@ -1054,7 +1065,7 @@
     const layout = document.querySelector(".ai-layout");
     const tabs = document.querySelectorAll(".ai-mobile-tab");
     if (!layout) return;
-    const mobile = isMobileLayout();
+    const mobile = isMobileAiLayout();
     if (!mobile) {
       delete layout.dataset.aiMobileTab;
       tabs.forEach((btn) => {
@@ -1099,7 +1110,7 @@
         applyAiMobileTab(tab);
         if (AI_MOBILE_CHAT_TABS.has(tab)) {
           const input = document.getElementById("ai-chat-input");
-          if (input && isMobileLayout()) input.focus();
+          if (input && isMobileAiLayout()) input.focus();
         }
       });
     });
@@ -1126,7 +1137,7 @@
 
     syncHubAiMobileViewport = () => {
       const onAi = document.body.classList.contains("hub-page-ai");
-      if (!onAi || !isMobileLayout()) {
+      if (!onAi || !isMobileAiLayout()) {
         shell.style.removeProperty("height");
         shell.style.removeProperty("max-height");
         shell.style.removeProperty("width");
@@ -3350,7 +3361,7 @@
     if (title) {
       const modeLabel = botMode === "general" ? "普通聊天" : "交易教练";
       const sessionTitle = session && session.title ? String(session.title) : "";
-      if (isMobileLayout()) {
+      if (isMobileAiLayout()) {
         title.textContent = sessionTitle && sessionTitle !== "新对话"
           ? sessionTitle
           : modeLabel;
@@ -3426,7 +3437,7 @@
       const mode =
         (aiChatSessionCache && aiChatSessionCache.bot_mode) === "general" ? "general" : "trading";
       updateAiBotTabs(mode);
-      if (isMobileLayout()) {
+      if (isMobileAiLayout()) {
         localStorage.setItem(AI_MOBILE_TAB_KEY, mode);
         applyAiMobileTab(mode);
       }
@@ -3462,7 +3473,7 @@
     applyAiMobileTab();
     await loadAiChatSession();
     const mobTab = normalizeAiMobileTab(localStorage.getItem(AI_MOBILE_TAB_KEY) || "trading");
-    if (isMobileLayout() && AI_MOBILE_CHAT_TABS.has(mobTab)) {
+    if (isMobileAiLayout() && AI_MOBILE_CHAT_TABS.has(mobTab)) {
       const input = document.getElementById("ai-chat-input");
       if (input && !aiChatLoading) {
         setTimeout(() => input.focus(), 80);
@@ -3484,7 +3495,7 @@
       renderAiChatMessages(aiChatSessionCache);
       renderAiChatHistory(aiChatSessionsCache);
       updateAiBotTabs(mode);
-      if (isMobileLayout()) {
+      if (isMobileAiLayout()) {
         localStorage.setItem(AI_MOBILE_TAB_KEY, mode);
         applyAiMobileTab(mode);
       }