[Feature]: Support Stagehand v3

[adam0white]

🚀 Feature Request

Stagehand v3 has breaking changes and updates.
https://docs.stagehand.dev/v3/migrations/v2

Example

No response

Motivation

I'd like to use the latest version of Stagehand on Cloudflare Browser Rendering, especially via AI Gateway and/or Workers AI models. It's a great fit, we just need some compatibility upgrades. Thank you for your good work!

[ruifigueira]

Thanks for your request. We're evaluating it but it will require some effort on our side, as stagehand v3 no longer relies on playwright.