fix uploads

desktop/index.html

@@ -269,6 +269,16 @@
     </div>
   </div>
 
+  <div id="upload-limit-modal" class="modal-container hidden">
+    <div class="modal">
+      <h2>Upload Too Large</h2>
+      <p id="upload-limit-message" class="modal-copy">Uploads are limited to 50 MB per file.</p>
+      <div class="modal-footer">
+        <button type="button" class="submit-btn" id="upload-limit-ok">OK</button>
+      </div>
+    </div>
+  </div>
+
   <script type="module" src="app.js?v=20260227-shared-core-1"></script>
 </body>