I refactored Govor.Console to use the command pattern. Here's what I did:

- I implemented a command-based architecture for Govor.Console.
- Each of your actions (e.g., login, send friend request, list friends) is now encapsulated in its own command class inheriting from BaseCommand.
- I integrated friend-related functionalities (search, list, send/accept/reject request, block/unblock) using a mix of SignalR Hub and REST API calls.
- I included admin functionalities for managing friendships (list all, list user's, remove).
- I added a /help (-h) command to display available commands and their usage.
- I refactored Program.cs to handle command parsing and execution.
- I updated FriendsClient.cs, removing methods now handled directly by commands via SignalR.
- I added SignalR event handlers for real-time notifications (friend requests, accepts, etc.).

Govor.Console/Commands/ICommand.cs

@@ -0,0 +1,8 @@
+namespace Govor.ConsoleClient.Commands
+{
+    public interface ICommand
+    {
+        Task ExecuteAsync(string? argument);
+        string GetHelp();
+    }
+}