Add Role based grain placement

src/Managing.Application/Bots/Grains/LiveTradingBotGrain.cs

@@ -1,6 +1,7 @@
 using Managing.Application.Abstractions;
 using Managing.Application.Abstractions.Grains;
 using Managing.Application.Abstractions.Services;
+using Managing.Application.Orleans;
 using Managing.Application.Shared;
 using Managing.Common;
 using Managing.Core;
@@ -19,7 +20,9 @@ namespace Managing.Application.Bots.Grains;
 /// Orleans grain for live trading bot operations.
 /// Uses composition with TradingBotBase to maintain separation of concerns.
 /// This grain handles live trading scenarios with real-time market data and execution.
+/// Uses custom trading placement with load balancing and built-in fallback.
 /// </summary>
+[TradingPlacement] // Use custom trading placement with load balancing
 public class LiveTradingBotGrain : Grain, ILiveTradingBotGrain, IRemindable
 {
     private readonly IPersistentState<TradingBotGrainState> _state;