debug: Monaco preload 加日志诊断

web/app/api.js

@@ -136,15 +136,19 @@ if (!token) {
 (function preloadMonaco(){
   if(window._monacoLoading||window._monacoReady)return;
   window._monacoLoading=true;
+  console.log('[Monaco] Preloading...');
   const s=document.createElement('script');
   s.src='https://cdn.jsdelivr.net/npm/monaco-editor@0.45.0/min/vs/loader.js';
   s.onload=function(){
+    console.log('[Monaco] loader.js loaded, requiring editor...');
     require.config({paths:{vs:'https://cdn.jsdelivr.net/npm/monaco-editor@0.45.0/min/vs'}});
     require(['vs/editor/editor.main'],function(){
       window.monaco=monaco;
       window._monacoReady=true;
+      console.log('[Monaco] Ready!');
     });
   };
+  s.onerror=function(){console.error('[Monaco] Failed to load loader.js')};
   document.head.appendChild(s);
 })();