Initial minecraft role

Paper/Java via itzg/minecraft-server in docker compose; whitelist and ops synchronized from Ansible, RCON on localhost only, explicit EULA flag.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

meta/main.yml

@@ -0,0 +1,17 @@
+---
+galaxy_info:
+  role_name: minecraft
+  namespace: hahn-cloud
+  author: Lars Hahn
+  company: OpenDevChain
+  license: MIT
+  description: Role to setup a Minecraft Java Edition server
+  min_ansible_version: 2.7
+  platforms:
+    - name: Debian
+      versions:
+        - 13
+  galaxy_tags:
+    - minecraft
+dependencies:
+  - docker