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/pump/package.json

@@ -0,0 +1,24 @@
+{
+  "name": "pump",
+  "version": "3.0.3",
+  "repository": "git://github.com/mafintosh/pump.git",
+  "license": "MIT",
+  "description": "pipe streams together and close all of them if one of them closes",
+  "browser": {
+    "fs": false
+  },
+  "keywords": [
+    "streams",
+    "pipe",
+    "destroy",
+    "callback"
+  ],
+  "author": "Mathias Buus Madsen <mathiasbuus@gmail.com>",
+  "dependencies": {
+    "end-of-stream": "^1.1.0",
+    "once": "^1.3.1"
+  },
+  "scripts": {
+    "test": "node test-browser.js && node test-node.js"
+  }
+}