- Replaced Bungeecord proxy with Velocity proxy.
- Updated brand name and logging for Velocity support.
- Introduced `velocity` and `velocity-secret` configuration options.
- Removed deprecated Bungeecord handling.
- General refactor and cleanup for proxy integration.
- Bump Gradle to 8.5 and adjust related configs.
- Upgrade from JDK 17 to JDK 21.
- Replace deprecated methods with modern equivalents (`withDisplayName` -> `withCustomName`).
- Refactor and simplify event handling (e.g., PlayerLoginEvent -> AsyncPlayerConfigurationEvent).
- Fix minor issues with player and inventory handling.
- Improve Gradle startup scripts for better compatibility.
- Transition plugin handling from deprecated to current class references.
- General cleanup and code modernization.
