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/Entities/BotEntity.cs

@@ -36,4 +36,15 @@ public class BotEntity
     public decimal Fees { get; set; }
     public int LongPositionCount { get; set; }
     public int ShortPositionCount { get; set; }
+
+    /// <summary>
+    /// The user ID of the master bot's owner when this bot is for copy trading
+    /// </summary>
+    [ForeignKey("MasterBotUser")]
+    public int? MasterBotUserId { get; set; }
+
+    /// <summary>
+    /// Navigation property for the master bot's owner when this bot is for copy trading
+    /// </summary>
+    public virtual UserEntity? MasterBotUser { get; set; }
 }

src/Managing.Infrastructure.Database/PostgreSql/ManagingDbContext.cs

@@ -548,6 +548,12 @@ public class ManagingDbContext : DbContext
                 .WithMany()
                 .HasForeignKey(e => e.UserId)
                 .OnDelete(DeleteBehavior.SetNull);
+
+            // Configure relationship with MasterBotUser
+            entity.HasOne(e => e.MasterBotUser)
+                .WithMany()
+                .HasForeignKey(e => e.MasterBotUserId)
+                .OnDelete(DeleteBehavior.SetNull);
         });
 
         // Configure MoneyManagement entity

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)

src/Managing.Infrastructure.Database/PostgreSql/PostgreSqlMappers.cs

@@ -753,7 +753,8 @@ public static class PostgreSqlMappers
             Volume = entity.Volume,
             Fees = entity.Fees,
             LongPositionCount = entity.LongPositionCount,
-            ShortPositionCount = entity.ShortPositionCount
+            ShortPositionCount = entity.ShortPositionCount,
+            MasterBotUserId = entity.MasterBotUserId
         };
 
         return bot;
@@ -784,6 +785,7 @@ public static class PostgreSqlMappers
             Fees = bot.Fees,
             LongPositionCount = bot.LongPositionCount,
             ShortPositionCount = bot.ShortPositionCount,
+            MasterBotUserId = bot.MasterBotUserId,
             UpdatedAt = DateTime.UtcNow
         };
     }