Add ROI to botPaginated

src/Managing.Api/Models/Requests/GetBotsPaginatedRequest.cs

@@ -43,10 +43,10 @@ public class GetBotsPaginatedRequest
     public string? AgentName { get; set; }
 
     /// <summary>
-    /// Sort field. Valid values: "Name", "Ticker", "Status", "CreateDate", "StartupTime", "Pnl", "WinRate", "AgentName".
-    /// Default is "CreateDate".
+    /// Sort field as enum to restrict allowed values.
+    /// Default is CreateDate.
     /// </summary>
-    public string SortBy { get; set; } = "CreateDate";
+    public BotSortableColumn SortBy { get; set; } = BotSortableColumn.CreateDate;
 
     /// <summary>
     /// Sort direction. Default is "Desc" (descending).

src/Managing.Api/Models/Responses/TradingBotResponse.cs

@@ -44,6 +44,12 @@ namespace Managing.Api.Models.Responses
         [Required]
         public decimal ProfitAndLoss { get; internal set; }
 
+        /// <summary>
+        /// Current return on investment percentage
+        /// </summary>
+        [Required]
+        public decimal Roi { get; internal set; }
+
         /// <summary>
         /// Unique identifier for the bot
         /// </summary>