CLI Env Vars & Webhook Consistency

This release improves automation workflows and integration reliability. The CLI now supports DAYTONA_API environment variables, allowing for streamlined configuration in CI/CD pipelines and non-interactive environments. This removes the friction of manual authentication steps in automated scripts.

To improve integration stability, the API webhook payloads have been updated to strictly align with the official documentation. These payloads now explicitly include event and timestamp fields, ensuring downstream services receive predictable data structures for event tracking and logging.