fix(autoUpdate): improve error handling and UI reset during update process

preload.js

@@ -122,10 +122,19 @@ contextBridge.exposeInMainWorld("electronAPI", {
    */
   installUpdate: () => ipcRenderer.invoke("install-update"),
 
+  /**
+   * Subscribes to the update error event.
+   *
+   * @param {Function} callback - Function executed with error information when an update error occurs.
+   * @returns {Electron.IpcRenderer}
+   */
+  onUpdateError: (callback) => ipcRenderer.on("update-error", (_, err) => callback(err)),
+
   /**
    * Subscribes to the download progress event.
    *
    * @param {Function} callback - Function executed with progress metrics (percent, bytesPerSecond, transferred, total).
+   * @returns {Electron.IpcRenderer}
    */
   onDownloadProgress: (callback) =>
     ipcRenderer.on("update-progress", (_, progress) => callback(progress)),