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/netmask/package.json

@@ -0,0 +1,36 @@
+{
+    "author": "Olivier Poitrey <rs@rhapsodyk.net>",
+    "name": "netmask",
+    "description": "Parse and lookup IP network blocks",
+    "version": "2.0.2",
+    "homepage": "https://github.com/rs/node-netmask",
+    "bugs": "https://github.com/rs/node-netmask/issues",
+    "license": "MIT",
+    "repository": {
+        "type": "git",
+        "url": "git://github.com/rs/node-netmask.git"
+    },
+    "keywords": [
+        "net",
+        "mask",
+        "ip",
+        "network",
+        "cidr",
+        "netmask",
+        "subnet",
+        "ipcalc"
+    ],
+    "main": "./lib/netmask",
+    "scripts": {
+        "prepublish": "coffee -c lib/*.coffee",
+        "test": "coffee -c lib/*.coffee && vows --spec test/* && mocha tests/*"
+    },
+    "engines": {
+        "node": ">= 0.4.0"
+    },
+    "devDependencies": {
+        "coffee-script": ">=1.2.0",
+        "mocha": "^8.3.2",
+        "vows": "*"
+    }
+}