Refactor endpoint params delete to use MediatR handler

Replaces ToObjectProcedure with DeleteEndpointParamsProcedureHandler using MediatR's request/handler pattern. Improves separation of concerns by delegating deletion logic to the handler and updates imports and namespace accordingly.

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

@@ -1,3 +1,4 @@
+using MediatR;
 using ReC.Application.Common.Procedures.DeleteProcedure;
 
 namespace ReC.Application.EndpointParams.Commands;
@@ -18,15 +19,18 @@ public record DeleteEndpointParamsProcedure : IDeleteProcedure
     /// If true, delete even if dependent ACTION data exists
     /// </summary>
     public bool Force { get; set; }
+}
 
-    public DeleteObjectProcedure ToObjectProcedure()
+public class DeleteEndpointParamsProcedureHandler(ISender sender) : IRequestHandler<DeleteEndpointParamsProcedure, int>
+{
+    public async Task<int> Handle(DeleteEndpointParamsProcedure request, CancellationToken cancel)
     {
-        return new DeleteObjectProcedure
+        return await sender.Send(new DeleteObjectProcedure
         {
             Entity = "ENDPOINT_PARAMS",
-            Start = Start,
-            End = End,
-            Force = Force
-        };
+            Start = request.Start,
+            End = request.End,
+            Force = request.Force
+        }, cancel);
     }
 }