Add Status, Message, and Header to OutRes class

Added three new nullable properties—Status (short), Message (string), and Header (string)—to the OutRes class to support additional metadata and state information.

src/ReC.Domain/Entities/OutRes.cs

@@ -8,6 +8,10 @@ public class OutRes
 
     public RecAction? Action { get; set; }
 
+    public short? Status { get; set; }
+
+    public string? Message { get; set; }
+
     public string? Header { get; set; }
 
     public string? Body { get; set; }