initial commit

Commands/HelpCommand.cs

@@ -0,0 +1,33 @@
+using Spectre.Console;
+using System.Linq;
+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)
+    {
+        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;
+    }
+}