Refactor InsertEndpointParamsProcedure with MediatR handler

Remove ToObjectProcedure method from InsertEndpointParamsProcedure and introduce InsertEndpointParamsProcedureHandler using MediatR's IRequestHandler. This decouples conversion and command logic, aligning with MediatR patterns and improving separation of concerns.

src/ReC.Application/EndpointParams/Commands/InsertEndpointParamsProcedure.cs

@@ -1,4 +1,5 @@
-using ReC.Application.Common.Procedures.InsertProcedure;
+using MediatR;
+using ReC.Application.Common.Procedures.InsertProcedure;
 
 namespace ReC.Application.EndpointParams.Commands;
 
@@ -10,13 +11,16 @@ public record InsertEndpointParamsProcedure : IInsertProcedure
     public byte? Sequence { get; set; }
     public string? Key { get; set; }
     public string? Value { get; set; }
+}
 
-    public InsertObjectProcedure ToObjectProcedure(string? addedWho = null)
+public class InsertEndpointParamsProcedureHandler(ISender sender) : IRequestHandler<InsertEndpointParamsProcedure, long>
+{
+    public async Task<long> Handle(InsertEndpointParamsProcedure request, CancellationToken cancel)
     {
-        return new InsertObjectProcedure
+        return await sender.Send(new InsertObjectProcedure
         {
             Entity = "ENDPOINT_PARAMS",
-            EndpointParams = this
-        }.AddedBy(addedWho);
+            EndpointParams = request
+        }, cancel);
     }
 }