Add MasterBotUserId and MasterAgentName for copy trading support

- Introduced MasterBotUserId and MasterAgentName properties to facilitate copy trading functionality.
- Updated relevant models, controllers, and database entities to accommodate these new properties.
- Enhanced validation logic in StartCopyTradingCommandHandler to ensure proper ownership checks for master strategies.

src/Managing.Api/Controllers/DataController.cs

@@ -993,6 +993,7 @@ public class DataController : ControllerBase
                 StartupTime = item.StartupTime,
                 Name = item.Name,
                 Ticker = item.Ticker,
+                MasterAgentName = item.MasterBotUser?.AgentName,
             });
         }