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/ws/lib/constants.js

@@ -0,0 +1,19 @@
+'use strict';
+
+const BINARY_TYPES = ['nodebuffer', 'arraybuffer', 'fragments'];
+const hasBlob = typeof Blob !== 'undefined';
+
+if (hasBlob) BINARY_TYPES.push('blob');
+
+module.exports = {
+  BINARY_TYPES,
+  CLOSE_TIMEOUT: 30000,
+  EMPTY_BUFFER: Buffer.alloc(0),
+  GUID: '258EAFA5-E914-47DA-95CA-C5AB0DC85B11',
+  hasBlob,
+  kForOnEventAttribute: Symbol('kIsForOnEventAttribute'),
+  kListener: Symbol('kListener'),
+  kStatusCode: Symbol('status-code'),
+  kWebSocket: Symbol('websocket'),
+  NOOP: () => {}
+};