fix: wait 2s after destroyEditor for ONLYOFFICE session to close before reopening

static/carbone.js

@@ -277,10 +277,6 @@ function closeOnlyofficeEditor() {
   
   // Delete the DocsAPI global and remove the script tag so the next
   // openOnlyofficeEditor call loads a completely fresh ONLYOFFICE API.
-  // This is the key: destroyEditor() cleans the editor instance, but
-  // the DocsAPI object itself retains internal state (websocket pools,
-  // document session references) that causes the next editor to load
-  // a stale document. Removing the script + global forces a fresh init.
   delete window.DocsAPI;
   const oldScript = document.querySelector('script[src*="api/documents/api.js"]');
   if (oldScript) oldScript.remove();
@@ -290,9 +286,14 @@ function closeOnlyofficeEditor() {
 
 // Open ONLYOFFICE editor in a modal
 async function openOnlyofficeEditor(templateId, templateName) {
+  // Block reopening if a previous editor is still tearing down.
+  // destroyEditor() is async — the ONLYOFFICE websocket/session needs
+  // time to close before a new editor can be created cleanly.
   if (onlyofficeEditorInstance) {
     try { onlyofficeEditorInstance.destroyEditor(); } catch (e) {}
     onlyofficeEditorInstance = null;
+    // Give ONLYOFFICE's internal session 2 seconds to fully close
+    await new Promise(r => setTimeout(r, 2000));
   }
 
   try {
@@ -317,7 +318,6 @@ async function openOnlyofficeEditor(templateId, templateName) {
     showModal(body, '', 'xlarge');
 
     // Load ONLYOFFICE API script fresh each time with cache-buster.
-    // This ensures a completely new DocsAPI instance with no stale state.
     const scriptUrl = onlyofficeUrl + '/web-apps/apps/api/documents/api.js?cb=' + Date.now();
     await new Promise((resolve, reject) => {
       const s = document.createElement('script');