Handle SIGTERM to stop Minecraft gracefully

- Set up SIGTERM signal trap to invoke stop_server
- Ensure proper process exit and cleanup after the server stops
- Create makefile to build, clean, and install builds

Makefile

@@ -0,0 +1,17 @@
+CONTAINER = minecraft-minecraft-1
+
+.PHONY: default build clean install
+default: build
+
+build:
+	docker compose build
+
+clean:
+	rm -f screenlog.0
+	docker compose down --rmi all
+	docker builder prune -f
+
+install: build
+	touch screenlog.0
+	docker compose up -d && \
+	docker logs -f $(CONTAINER)