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/cliui/index.mjs

@@ -0,0 +1,13 @@
+// Bootstrap cliui with CommonJS dependencies:
+import { cliui } from './build/lib/index.js'
+import { wrap, stripAnsi } from './build/lib/string-utils.js'
+
+export default function ui (opts) {
+  return cliui(opts, {
+    stringWidth: (str) => {
+      return [...str].length
+    },
+    stripAnsi,
+    wrap
+  })
+}