tiAuth

[1] Added Velocity support [2] Added database migration from nLogin [3] Added support for versions 1.21.10/11 for the virtual server [4] Added the /auth forcepremium command to forcefully enable/disable premium mode [5] Added a cost setting for Bcrypt hashing [6] Fixed a bug with the popup dialog window during /changepassword [7] Fixed a startup issue on standard BungeeCord (non-forks) [8] Fixed an issue where the /changepassword and /unregister commands would freeze/hang if the entered password was too long [9] Fixed the "Invalid signature for profile public key" error when changing UUIDs for premium players [10] Fixed an issue with the max concurrent players limit per IP [11] Fixed an issue where the proxy wouldn't shut down upon a database initialization error (which it was supposed to do all along, but didn't)

And probably a few other minor things I forgot about.

[1] Fixed database migration from LimboAuth (see the updated migration instructions in the description)

[1] Now offline UUID is applied to all players (to prevent UUID changes for premium-mode players)
[2] Optimized SHA256 hashing method
[3] Other minor improvements

[1] Added 1.21.9 support for auth virtual server

[1] Added a limit on the number of accounts playing and registered from a single IP address simultaneously
[2] Added support for MiniMessage formatting
[3] Added the command /tiauth forceregister
[4] Minor technical improvements