AnchorCli/Commands/HelpCommand.cs

using Spectre.Console;
using System.Reflection;
namespace AnchorCli.Commands;

public class HelpCommand : ICommand
{
    private readonly CommandRegistry _registry;

    public string Name => "help";
    public string Description => "Show available commands";

    public HelpCommand(CommandRegistry registry)
    {
        _registry = registry;
    }

    public Task ExecuteAsync(string[] args, CancellationToken ct)
    {
        var version = Assembly.GetExecutingAssembly().GetName().Version?.ToString() ?? "unknown";
        AnsiConsole.MarkupLine($"[cyan]Anchor CLI v{version}[/]");
        AnsiConsole.MarkupLine("[cyan]Available commands:[/]");

        var table = new Table();
        table.AddColumn("Command");
        table.AddColumn("Description");

        foreach (var cmd in _registry.GetAllCommands().OrderBy(c => c.Name))
        {
            table.AddRow($"[bold]{cmd.Name}[/]", cmd.Description);
        }

        AnsiConsole.Write(table);
        return Task.CompletedTask;
    }
}