Fix restart/start if not account with the first account of the user

src/Managing.Application.Abstractions/Grains/ILiveTradingBotGrain.cs

@@ -53,4 +53,9 @@ public interface ILiveTradingBotGrain : IGrainWithGuidKey
     /// Returns true if there are open positions, false otherwise
     /// </summary>
     Task<bool> HasOpenPositionsAsync();
+
+    /// <summary>
+    /// Gets the user who owns this bot
+    /// </summary>
+    Task<User> GetUserAsync();
 }