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/index.js

@@ -0,0 +1,14 @@
+const {
+  applyExtends,
+  cjsPlatformShim,
+  Parser,
+  processArgv,
+} = require('../build/index.cjs');
+
+module.exports = {
+  applyExtends: (config, cwd, mergeExtends) => {
+    return applyExtends(config, cwd, mergeExtends, cjsPlatformShim);
+  },
+  hideBin: processArgv.hideBin,
+  Parser,
+};