docker files fixes from liaqat

src/Managing.Application/Hubs/BacktestHub.cs

@@ -0,0 +1,15 @@
+using Microsoft.AspNetCore.SignalR;
+
+namespace Managing.Application.Hubs;
+
+public class BacktestHub : Hub
+{
+    public async override Task OnConnectedAsync()
+    {
+        await base.OnConnectedAsync();
+        await Clients.Caller.SendAsync("Message", $"Connected successfully on backtest hub. ConnectionId : {Context.ConnectionId}");
+    }
+
+    public async Task SubscribeBots() =>
+        await Clients.All.SendAsync("BacktestsSubscription", "Successfully subscribed");
+}