Beta 6: Coordinate Obfuscation and Anti-Xray Enforcements

## Goal Implement Beta 6 Hardcore Survival mechanics to enforce coordinate obfuscation and Anti-Xray protections. ## Features 1. **Force Anti-Xray**: Enforce Paper's Engine Mode 2 by default to prevent Xray. 2. **Hide Coordinates (F3)**: Send educedDebugInfo packets to all non-OP players on join to prevent coordinate sharing. 3. **Minimap & Radar Blocker**: Send payload packets on login to disable VoxelMap, JourneyMap, and other popular minimaps. ## Tasks - [ ] Add config options in LeichtodConfig.java - [ ] Implement educedDebugInfo enforcement in PlayerList.java - [ ] Implement payload blocking in ServerConfigurationPacketListenerImpl.java - [ ] Enforce Anti-Xray settings during server startup ## Related Part of the Leichtod Folia Beta 6 milestone.