Add Brave CDP automation, replace Oracle browser mode

Connects to user's running Brave via Chrome DevTools Protocol
to automate ChatGPT interaction. Uses puppeteer-core to open a
tab, send the prompt, wait for response, and extract the result.

No cookies, no separate profiles, no copy/paste. Just connects
to the browser where the user is already logged in.

One-time setup: relaunch Brave with --remote-debugging-port=9222

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

node_modules/yargs/helpers/helpers.mjs

@@ -0,0 +1,10 @@
+import {applyExtends as _applyExtends} from '../build/lib/utils/apply-extends.js';
+import {hideBin} from '../build/lib/utils/process-argv.js';
+import Parser from 'yargs-parser';
+import shim from '../lib/platform-shims/esm.mjs';
+
+const applyExtends = (config, cwd, mergeExtends) => {
+  return _applyExtends(config, cwd, mergeExtends, shim);
+};
+
+export {applyExtends, hideBin, Parser};