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/@tootallnate/quickjs-emscripten/dist/esmHelpers.d.ts

@@ -0,0 +1,9 @@
+/** Typescript thinks import('...js/.d.ts') needs mod.default.default */
+declare function fakeUnwrapDefault<T>(mod: {
+    default: T;
+}): T;
+/** Typescript thinks import('...ts') doesn't need mod.default.default, but does */
+declare function actualUnwrapDefault<T>(mod: T): T;
+export declare const unwrapTypescript: typeof actualUnwrapDefault;
+export declare const unwrapJavascript: typeof fakeUnwrapDefault;
+export {};