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/get-caller-file/index.js

@@ -0,0 +1,22 @@
+"use strict";
+// Call this function in a another function to find out the file from
+// which that function was called from. (Inspects the v8 stack trace)
+//
+// Inspired by http://stackoverflow.com/questions/13227489
+module.exports = function getCallerFile(position) {
+    if (position === void 0) { position = 2; }
+    if (position >= Error.stackTraceLimit) {
+        throw new TypeError('getCallerFile(position) requires position be less then Error.stackTraceLimit but position was: `' + position + '` and Error.stackTraceLimit was: `' + Error.stackTraceLimit + '`');
+    }
+    var oldPrepareStackTrace = Error.prepareStackTrace;
+    Error.prepareStackTrace = function (_, stack) { return stack; };
+    var stack = new Error().stack;
+    Error.prepareStackTrace = oldPrepareStackTrace;
+    if (stack !== null && typeof stack === 'object') {
+        // stack[0] holds this file
+        // stack[1] holds where this function was called
+        // stack[2] holds the file we're interested in
+        return stack[position] ? stack[position].getFileName() : undefined;
+    }
+};
+//# sourceMappingURL=index.js.map