- new patchbukkit-test-plugin gradle subproject with 69 tests across
10 categories (server, plugin_manager, command_system, event_system,
permissions, registry, entity, console_sender, unsafe_values, stubs)
- test framework with reflection-based discovery, ansi-colored output,
and ci-parseable [PBTEST_SUMMARY] line
- /pbtest [category|all] command for manual test execution
- fix .unwrap() panic in command_manager.rs register_permission that
crashed the jvm worker thread when plugins declared commands
