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/data-uri-to-buffer/dist/node.d.ts

@@ -0,0 +1,8 @@
+export type { ParsedDataURI } from './common';
+/**
+ * Returns a `Buffer` instance from the given data URI `uri`.
+ *
+ * @param {String} uri Data URI to turn into a Buffer instance
+ */
+export declare const dataUriToBuffer: (uri: string | URL) => import("./common").ParsedDataURI;
+//# sourceMappingURL=node.d.ts.map