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/extract-zip/index.d.ts

@@ -0,0 +1,21 @@
+// Based on the type definitions for extract-zip 1.6
+// Definitions by: Mizunashi Mana <https://github.com/mizunashi-mana>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/e69b58e/types/extract-zip/index.d.ts
+
+import { Entry, ZipFile } from 'yauzl';
+
+declare namespace extract {
+    interface Options {
+        dir: string;
+        defaultDirMode?: number;
+        defaultFileMode?: number;
+        onEntry?: (entry: Entry, zipfile: ZipFile) => void;
+    }
+}
+
+declare function extract(
+  zipPath: string,
+  opts: extract.Options,
+): Promise<void>;
+
+export = extract;