Connection Guard 0.4.11 — urgent bStats hotfix

Fixes a missing bStats runtime dependency (MetricsBase) that could prevent Connection Guard from enabling on Bukkit/Paper and BungeeCord. bStats Base 3.0.2 is now bundled and relocated inside the plugin; the build checks that the required classes are present.

This hotfix is based on published 0.4.10. Existing configuration, translations and connection-check behavior are retained.

Upgrade: Stop the server/proxy, replace the old JAR with connection-guard-0.4.11-all.jar, and restart. Keep only one Connection Guard JAR installed.

Validation: 48 regression tests, combined JAR/descriptor/bytecode verification, repeatable-build CI, and a real isolated Paper 1.21.11 build 132 / Java 21 startup, plugin activation, configuration reload, synthetic offline backend join and clean shutdown. These controlled tests add no new platform or real-world detection-accuracy claim.