docker-helper

@1mangesh1

Docker operations including Dockerfile authoring, image builds, container lifecycle, networking, volumes, multi-stage builds, buildx, security hardening, and debugging. Use when asked to "build image", "run container", "write dockerfile", "docker compose", "optimize image", "debug container", "multi-platform build", "docker network", "docker volume", "scan image", "prune docker", or any container-related task.