Java and Bedrock compatibility maintenance

Updated server and connection components for Java and Bedrock players.

• Updated the Java server engine to Paper 26.2 build 134, including the latest fixes for this Minecraft version.
• Updated Bedrock connectivity to Geyser 2.12.0 build 1265 and Floodgate build 141.
• Updated support for different Java client versions with ViaVersion and ViaBackwards 5.12.1.