T3 browser extension

[andrepg-dev]

T3 Code navigating in our personal browser, similar to Claude Cowork

[editnori]

I've been using something close to this through Playwriter, and it works incredibly well.

My T3 agents run on other machines, but Chrome stays on my main machine with the extension attached. Each agent session gets a fresh tab it owns. It can't see my existing tabs or another agent's tabs, while cookies and network access still come from the same signed-in Chrome profile.

I have this working in a fork. It seems a little different from browser profiles because it keeps using the actual browser instead of copying its session into T3. Is this close to the direction you want for the T3 browser? If so, I'm happy to prepare the smallest useful PR. If the browser-profile work is meant to cover this another way, that's okay too.