Deploy and manage Vercel projects using token-based authentication without interactive login.

• Supports token discovery from environment variables or .env files, with automatic fallback to user input if needed
• Enables preview and production deployments via CLI or git push, with optional project linking via vercel link --repo
• Includes environment variable management, deployment inspection with logs, domain configuration, and Stripe Projects plan upgrades
• Requires VERCEL_TOKEN exported as an environment variable; tokens must never be passed as command-line flags to avoid exposure in shell history