Added demo for cpp module and updated the CppModule

Plugins/CppModuleDemo/StopSlashCommand.cs

@@ -0,0 +1,37 @@
+using Discord;
+using Discord.WebSocket;
+using DiscordBotCore.Logging;
+using DiscordBotCore.PluginCore.Interfaces;
+
+namespace CppModuleDemo;
+
+public class StopSlashCommand : IDbSlashCommand
+{
+    public string Name => "stop-cpp-module-demo";
+    public string Description => "Stops the C++ module demo and cleans up resources.";
+    public bool CanUseDm => false;
+    public bool HasInteraction => false;
+    public List<SlashCommandOptionBuilder> Options => [];
+
+    public async void ExecuteServer(ILogger logger, SocketSlashCommand context)
+    {
+        if (InternalSettings.ExternalApplicationHandler == null)
+        {
+            logger.Log("No C++ module is currently running.", this);
+            return;
+        }
+
+        Guid id = InternalSettings.DemoModuleInternalId;
+        if (id == Guid.Empty)
+        {
+            logger.Log("No valid C++ module ID found. Cannot stop the module.", this);
+            return;
+        }
+
+        InternalSettings.ExternalApplicationHandler.StopApplication(id);
+        InternalSettings.DemoModuleInternalId = Guid.Empty;
+        logger.Log("CppModuleDemo stopped successfully.", this);
+
+        await context.Channel.SendMessageAsync("CppModuleDemo has been stopped and resources cleaned up.");
+    }
+}