fix(cli): Prevent stdout/stderr patching for extension commands (#13600)

Co-authored-by: jacob314 <jacob314@gmail.com>

packages/cli/src/commands/extensions/enable.ts

@@ -14,6 +14,7 @@ import {
   getErrorMessage,
 } from '@google/gemini-cli-core';
 import { promptForSetting } from '../../config/extensions/extensionSettings.js';
+import { exitCli } from '../utils.js';
 
 interface EnableArgs {
   name: string;
@@ -86,5 +87,6 @@ export const enableCommand: CommandModule = {
       name: argv['name'] as string,
       scope: argv['scope'] as string,
     });
+    await exitCli();
   },
 };