Add reason when stopping bot

src/Managing.Application/ManageBot/BotService.cs

@@ -54,7 +54,7 @@ namespace Managing.Application.ManageBot
             try
             {
                 var grain = _grainFactory.GetGrain<ILiveTradingBotGrain>(identifier);
-                await grain.StopAsync();
+                await grain.StopAsync("User requested stop");
                 return BotStatus.Stopped;
             }
             catch (Exception e)
@@ -72,7 +72,7 @@ namespace Managing.Application.ManageBot
             {
                 var config = await grain.GetConfiguration();
                 var account = await grain.GetAccount();
-                await grain.StopAsync();
+                await grain.StopAsync("Deleting bot");
                 await _botRepository.DeleteBot(identifier);
                 await grain.DeleteAsync();