Add current-world edit permission

[twme-ai]

Summary

• add openphysicscontrol.set.current-world so delegated players can edit only the world they currently occupy
• enforce the scope for rule commands, material overrides, GUI clicks, and world-name tab completion
• retain openphysicscontrol.set and OP access for all loaded worlds, with localized denial messages and permission documentation
• cover the permission matrix and plugin descriptor in unit tests

Testing

• ./gradlew clean build -PserverPlatform=spigot
• ./gradlew clean test shadowJar