fix: unique keyHash in download URL path + 2s reload delay for save callback

renderer/carbone-templates/registry.json

@@ -6,6 +6,6 @@
     "originalName": "master_cv_template.docx",
     "path": "/root/workspace/cv-app/renderer/carbone-templates/433a0593-d3cf-414e-8763-ab5f87cbc75c.docx",
     "uploadedAt": "2026-07-16T09:03:29.601Z",
-    "updatedAt": "2026-07-16T12:06:39.375Z"
+    "updatedAt": "2026-07-16T12:09:36.709Z"
   }
 ]

renderer/onlyoffice-service.js

@@ -147,11 +147,11 @@ router.get('/:templateId/config', (req, res) => {
   const docKey = generateDocKey(templateId, Date.now());
   const fileName = template.originalName || template.name + '.docx';
   
-  // Add file mtime as cache-buster to the document URL so ONLYOFFICE
-  // always fetches the latest version from our backend.
-  // The mtime changes every time the file is saved, so the URL is
-  // different after each save, forcing ONLYOFFICE to re-download.
-  const documentUrl = `${BACKEND_PUBLIC_URL}/api/onlyoffice/${templateId}/download?mtime=${fileMtime}&cb=${Date.now()}`;
+  // Add the doc key to the download URL path so ONLYOFFICE treats
+  // every edit session as a completely fresh document URL.
+  // Query params alone aren't enough — ONLYOFFICE may ignore them for caching.
+  const keyHash = docKey.split('_').pop();
+  const documentUrl = `${BACKEND_PUBLIC_URL}/api/onlyoffice/${templateId}/download/${keyHash}?mtime=${fileMtime}&cb=${Date.now()}`;
   const callbackUrl = `${BACKEND_PUBLIC_URL}/api/onlyoffice/${templateId}/callback`;
   
   const config = {
@@ -223,9 +223,35 @@ router.get('/:templateId/config', (req, res) => {
 
 // ============================================================
 // ENDPOINT: GET /api/onlyoffice/:templateId/download
-// ONLYOFFICE fetches the .docx file from this URL
+// ONLYOFFICE fetches the .docx file from this URL.
+// The optional :keyHash path param provides per-session cache-busting.
 // ============================================================
 
+router.get('/:templateId/download/:keyHash', (req, res) => {
+  const templateId = req.params.templateId;
+  const registry = loadRegistry();
+  const template = registry.find(t => t.id === templateId);
+  
+  if (!template) {
+    return res.status(404).json({ error: 'Template not found' });
+  }
+  
+  if (!fs.existsSync(template.path)) {
+    return res.status(404).json({ error: 'Template file missing' });
+  }
+  
+  const fileName = template.originalName || template.name + '.docx';
+  res.setHeader('Content-Type', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document');
+  res.setHeader('Content-Disposition', `attachment; filename="${fileName}"`);
+  res.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate');
+  res.setHeader('Pragma', 'no-cache');
+  res.setHeader('Expires', '0');
+  
+  const fileStream = fs.createReadStream(template.path);
+  fileStream.pipe(res);
+});
+
+// Fallback route without keyHash (backward compatibility)
 router.get('/:templateId/download', (req, res) => {
   const templateId = req.params.templateId;
   const registry = loadRegistry();

static/carbone.js

@@ -283,9 +283,11 @@ function closeOnlyofficeEditor() {
   // Reload the page to clear ONLYOFFICE's in-memory state.
   // Save the active page so the user returns to Templates automatically
   sessionStorage.setItem('returnPage', 'templates');
+  // Wait 2 seconds for the save callback (status=2) to complete
+  // on our backend before reloading the page
   setTimeout(() => {
     location.reload();
-  }, 300);
+  }, 2000);
 }
 
 // Open ONLYOFFICE editor in a modal

static/index.html

@@ -139,7 +139,7 @@
 <!-- Modals -->
 <div class="modal-overlay" id="modal-overlay"></div>
 
-<script src="/static/app.js?v=8"></script>
-<script src="/static/carbone.js?v=8"></script>
+<script src="/static/app.js?v=9"></script>
+<script src="/static/carbone.js?v=9"></script>
 </body>
 </html>