Ensure .NET/C# code meets best practices for the solution/project

# .NET/C# Best Practices

Your task is to ensure .NET/C# code in ${selection} meets the best practices specific to this solution/project. This includes:

## Documentation & Structure

- Create comprehensive XML documentation comments for all public classes, interfaces, methods, and properties
- Include parameter descriptions and return value descriptions in XML comments
- Follow the established namespace structure: {Core|Console|App|Service}.{Feature}

## Design Patterns & Architecture

- Use primary constructor syntax for dependency injection (e.g., `public class MyClass(IDependency dependency)`)
- Implement the Command Handler pattern with generic base classes (e.g., `CommandHandler<TOptions>`)
- Use interface segregation with clear naming conventions (prefix interfaces with 'I')
- Follow the Factory pattern for complex object creation.

## Dependency Injection & Services

- Use constructor dependency injection with null checks via ArgumentNullException
- Register services with appropriate lifetimes (Singleton, Scoped, Transient)
- Use Microsoft.Extensions.DependencyInjection patterns
- Implement service interfaces for testability

## Resource Management & Localization