init a query to read envelope report by envelope id via mediator

EnvelopeGenerator.Application/EnvelopeReports/ReadEnvelopeReportQuery.cs

@@ -0,0 +1,14 @@
+using EnvelopeGenerator.Domain.Entities;
+using MediatR;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace EnvelopeGenerator.Application.EnvelopeReports;
+
+/// <summary>
+/// 
+/// </summary>
+public record ReadEnvelopeReportQuery(int EnvelopeId) : IRequest;