Containerize Aspnetcore

Creates a production-ready Dockerfile and .dockerignore for ASP.NET Core projects with proper multi-stage builds, security practices, and Linux distribution support. Handles the tedious bits like setting non-root users, configuring ASPNETCORE_URLS, managing NuGet feeds, and installing system dependencies. Good for when you need more than a basic containerization setup but don't want to research Microsoft's latest base image tags or remember all the Docker best practices. The extensive configuration options cover most real-world scenarios, from custom health checks to volume mounts, though you'll probably only need the first few settings for typical projects.