add simplification steps

csharp-fp1/Program.cs

@@ -0,0 +1,25 @@
+using CsharpFp1.Application;
+using CsharpFp1.Domain;
+using CsharpFp1.Infrastructure;
+
+namespace CsharpFp1;
+
+public class Program
+{
+    public static void Main()
+    {
+        Console.WriteLine("[csharp-fp1] Starting withdraw money demo...");
+
+        var repository = new InMemoryAccountRepository();
+
+        var accountId = Guid.NewGuid();
+        Console.WriteLine($"[csharp-fp1] Seeding account {accountId} with opening balance 200.00");
+        repository.Save(new Account(new AccountId(accountId), new Money(200m)));
+
+        decimal amount = 100m;
+        Console.WriteLine($"[csharp-fp1] Executing withdrawal {amount:0.00} from account {accountId}");
+        AccountApplicationService.WithdrawMoney(repository, accountId, amount);
+
+        Console.WriteLine("[csharp-fp1] Demo completed.");
+    }
+}