Vouch v0.2.0-mc1.21.6 (pre-release)

Highlights:

• feat: add premium auto-login for online/premium accounts
• Auto-authenticate verified premium players on join
• Force 2FA verification for premium players with 2FA enabled
• Configurable via auth.premium_auto_login in vouch.toml

Full Changelog: https://github.com/valentin-marquez/vouch/compare/v0.1.2-mc1.21.6...v0.2.0-mc1.21.6