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/pac-resolver/dist/myIpAddress.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"myIpAddress.d.ts","sourceRoot":"","sources":["../src/myIpAddress.ts"],"names":[],"mappings":"AAGA;;;;;;;;;;;;;GAaG;AACH,wBAA8B,WAAW,IAAI,OAAO,CAAC,MAAM,CAAC,CAwB3D"}