Migrate Castle Windsor DI wiring to Microsoft.Extensions.DependencyInjection

[Copilot]

This PR replaces Castle Windsor-based dependency injection in core/view composition code with Microsoft DI, while preserving existing registration intent and mediator behavior. It also removes Castle-specific reflection helpers used for attribute discovery.

• DI container migration (Core + View)

  • Reworked installers to register services via IServiceCollection instead of Windsor container APIs.
  • Replaced Windsor component registrations with AddTransient / AddSingleton / TryAddTransient.
  • Updated both core and view project dependencies to remove Castle packages and add Microsoft.Extensions.DependencyInjection.

• Mediator composition update

  • Removed IKernel property injection and Windsor resolve/release usage.
  • Registered ServiceFactory via IServiceProvider and updated Mediator to use constructor injection.

• Convention registration contributors

  • Replaced Windsor IContributeComponentModelConstruction contributors with assembly-scanning registration helpers for:
    • IRequestHandler<T>
    • INotificationHandler<T>
    • IScreen implementations
  • Added loadable-type fallback handling for partial type-load scenarios (ReflectionTypeLoadException).

• Castle reflection helper removal

  • Replaced GetAttributes<T>() (Castle.Core.Internal) with standard reflection GetCustomAttributes<T>() in action-map and console-command attribute discovery paths.
  • Updated ConsoleCommandServiceFactory to consume IEnumerable<IConsoleCommand> for MS DI compatibility.

• Focused unit coverage

  • Added mediator tests validating:
    • Send dispatches to request handler
    • Publish dispatches to all notification handlers

// New ServiceFactory registration pattern
services.AddTransient<ServiceFactory>(sp => type =>
{
    if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(IEnumerable<>))
        return sp.GetServices(type.GetGenericArguments()[0]);

    return sp.GetRequiredService(type);
});

Original prompt

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This section details on the original issue you should resolve

<issue_title>Change Castle Windsor Dependency Injection to MS Dependency Injection</issue_title>
<issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Change Castle Windsor Dependency Injection to MS Dependency Injection #23

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