- Pre-create bStats config with `enabled: false` by default
- Apply changes to CraftBukkit, Spigot, and Paper Dockerfiles
- Consistent with existing implementation in Velocity proxy image
- Add 'make paper' target to build a Paper image with plugins based on JRE
- Introduce dynamic .env and plugins.json configuration using Makefile
- Enable users to extend builds by managing their own directories in scratch/
- Implement copy_build_files macro for reproducible build management
- Add BUILDKIT_PROGRESS and DOCKER_BUILDKIT as configurable make vars