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/yargs/build/lib/typings/common-types.js

@@ -0,0 +1,9 @@
+export function assertNotStrictEqual(actual, expected, shim, message) {
+    shim.assert.notStrictEqual(actual, expected, message);
+}
+export function assertSingleKey(actual, shim) {
+    shim.assert.strictEqual(typeof actual, 'string');
+}
+export function objectKeys(object) {
+    return Object.keys(object);
+}

node_modules/yargs/build/lib/typings/yargs-parser-types.js

@@ -0,0 +1 @@
+export {};