fix(cli): Auto restart CLI inner node process on trust change (#8378)

packages/cli/src/utils/processUtils.ts

@@ -0,0 +1,20 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { runExitCleanup } from './cleanup.js';
+
+/**
+ * Exit code used to signal that the CLI should be relaunched.
+ */
+export const RELAUNCH_EXIT_CODE = 42;
+
+/**
+ * Exits the process with a special code to signal that the parent process should relaunch it.
+ */
+export async function relaunchApp(): Promise<void> {
+  await runExitCleanup();
+  process.exit(RELAUNCH_EXIT_CODE);
+}