доработано обновление

Updater/Core/UpdaterApp.cs

@@ -12,6 +12,7 @@ public sealed class UpdaterApp
     private readonly IInstaller _installer;
     private readonly IProcessManager _proc;
 
+    /// <inheritdoc/>
     public UpdaterApp(ILogger log, IExtractor extractor, IInstaller installer, IProcessManager proc)
     {
         _log = log;
@@ -34,6 +35,7 @@ public sealed class UpdaterApp
         {
             _log.Error($"Extraction failed: {ex.Message}");
             Cleanup(tempExtractDir);
+            _proc.StartApp(opts.InstallPath, opts.AppExe, opts.RestartDelayMs);
             return ExitCodes.ExtractFailed;
         }
 
@@ -45,6 +47,7 @@ public sealed class UpdaterApp
         {
             _log.Error($"Install failed: {ex.Message}");
             Cleanup(tempExtractDir);
+            _proc.StartApp(opts.InstallPath, opts.AppExe, opts.RestartDelayMs);
             return ExitCodes.InstallFailed;
         }