Handle unhandled rejections more gracefully. (#4417)

Co-authored-by: Tommaso Sciortino <sciortino@gmail.com>

packages/cli/src/utils/events.ts

@@ -0,0 +1,14 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { EventEmitter } from 'events';
+
+export enum AppEvent {
+  OpenDebugConsole = 'open-debug-console',
+  LogError = 'log-error',
+}
+
+export const appEvents = new EventEmitter();