Add Versionning for bundle backtest request

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

@@ -199,6 +199,7 @@ public class ManagingDbContext : DbContext
             entity.Property(e => e.RequestId).IsRequired().HasMaxLength(255);
             entity.Property(e => e.UserId);
             entity.Property(e => e.Name).IsRequired().HasMaxLength(255);
+            entity.Property(e => e.Version).IsRequired().HasDefaultValue(1);
             entity.Property(e => e.Status)
                 .IsRequired()
                 .HasConversion<string>(); // Store enum as string
@@ -224,6 +225,9 @@ public class ManagingDbContext : DbContext
 
             // Composite index for user queries ordered by creation date
             entity.HasIndex(e => new { e.UserId, e.CreatedAt });
+            
+            // Composite index for user queries by name and version
+            entity.HasIndex(e => new { e.UserId, e.Name, e.Version });
         });
 
         // Configure Scenario entity