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.Infrastructure.Database/PostgreSql/PostgreSqlBotRepository.cs

@@ -79,6 +79,7 @@ public class PostgreSqlBotRepository : IBotRepository
         existingEntity.LastStartTime = bot.LastStartTime;
         existingEntity.LastStopTime = bot.LastStopTime;
         existingEntity.AccumulatedRunTimeSeconds = bot.AccumulatedRunTimeSeconds;
+        existingEntity.MasterBotUserId = bot.MasterBotUserId;
 
         await _context.SaveChangesAsync().ConfigureAwait(false);
     }
@@ -114,10 +115,26 @@ public class PostgreSqlBotRepository : IBotRepository
         var entities = await _context.Bots
             .AsNoTracking()
             .Include(m => m.User)
+            .Include(m => m.MasterBotUser)
             .Where(b => b.UserId == id)
             .ToListAsync()
             .ConfigureAwait(false);
-        return PostgreSqlMappers.Map(entities);
+
+        // Map entities to domain objects
+        var bots = PostgreSqlMappers.Map(entities).ToList();
+
+        // Attach master bot users to domain objects
+        foreach (var entity in entities.Where(e => e.MasterBotUser != null))
+        {
+            var bot = bots.FirstOrDefault(b => b.MasterBotUserId == entity.MasterBotUserId);
+            if (bot != null)
+            {
+                // Convert UserEntity to User domain object
+                bot.MasterBotUser = PostgreSqlMappers.Map(entity.MasterBotUser);
+            }
+        }
+
+        return bots;
     }
 
     public async Task<IEnumerable<Bot>> GetBotsByStatusAsync(BotStatus status)