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/devtools-protocol/README.md

@@ -0,0 +1,11 @@
+# devtools-protocol [![devtools-protocol on npm](https://img.shields.io/npm/v/devtools-protocol)](https://www.npmjs.com/package/devtools-protocol)
+
+:warning:
+This repository is related to Chrome DevTools Protocol, but does not track issues regarding its definition or implementation.
+If you want to file an issue for the Chrome DevTools Protocol, please open an issue on https://crbug.com under [`component: Platform>DevTools>Platform`](https://bugs.chromium.org/p/chromium/issues/entry?components=Platform%3EDevTools%3EPlatform).
+
+Use the [protocol viewer](https://chromedevtools.github.io/devtools-protocol/) for navigating the protocol.
+
+TypeScript definitions for the protocol's types are available in ['types/protocol.d.ts'](https://github.com/ChromeDevTools/devtools-protocol/tree/master/types). Mappings from Commands and events to these types are available in either generated `DomainApi` style in [`types/protocol-proxy-api.d.ts`](https://github.com/ChromeDevTools/devtools-protocol/blob/master/types/protocol-proxy-api.d.ts) or in simple name-to-type-interface style in [`types/protocol-mapping.d.ts`](https://github.com/ChromeDevTools/devtools-protocol/blob/master/types/protocol-mapping.d.ts).
+
+Also, this repo is published as the [`devtools-protocol`](https://www.npmjs.com/package/devtools-protocol) npm module.