Laravel 11: streamlined structure, Reverb, and health routing

Laravel 11 is the release where the framework noticeably simplified its default shape. The goal was not to remove power, but to put more of the important configuration in one obvious place and make new applications lighter to reason about.

The headline features are the streamlined application structure, the revitalized `bootstrap/app.php` configuration flow, per-second rate limiting, built-in health routing, graceful encryption key rotation, queue testing improvements, Resend mail transport, Prompt validator integration, and Laravel Reverb as a first-party WebSocket server.

For working teams, Laravel 11 reduced scaffolding noise and tightened the feedback loop around real operational concerns. It is a cleaner starting point for new products and a meaningful quality-of-life release for platform maintainers.