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/@puppeteer/browsers/lib/cjs/browser-data/firefox.d.ts

@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright 2023 Google Inc.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+import { BrowserPlatform, type ProfileOptions } from './types.js';
+export declare function resolveDownloadUrl(platform: BrowserPlatform, buildId: string, baseUrl?: string): string;
+export declare function resolveDownloadPath(platform: BrowserPlatform, buildId: string): string[];
+export declare function relativeExecutablePath(platform: BrowserPlatform, buildId: string): string;
+export declare enum FirefoxChannel {
+    STABLE = "stable",
+    ESR = "esr",
+    DEVEDITION = "devedition",
+    BETA = "beta",
+    NIGHTLY = "nightly"
+}
+export declare function changeBaseVersionUrlForTesting(url: string): void;
+export declare function resetBaseVersionUrlForTesting(): void;
+export declare function resolveBuildId(channel?: FirefoxChannel): Promise<string>;
+export declare function createProfile(options: ProfileOptions): Promise<void>;
+export declare function compareVersions(a: string, b: string): number;
+//# sourceMappingURL=firefox.d.ts.map