Deprecate repositories and update service interfaces

- Marked `IEnvelopeReceiverRepository` and several repository classes as obsolete, recommending the use of `IRepository`.
- Corrected `using` directive in `IReceiverService.cs`.
- Removed `UpdateAsync` method from `IReceiverService`.
- Enhanced `ISmsSender` interface with new properties and methods.
- Updated `ReceiverCreateDto`, `ReceiverReadDto`, and `UserReceiverDto` to enforce non-nullable properties.
- Refactored `TestReceiverController` to suggest using `MediatR`.

EnvelopeGenerator.Application/Contracts/Repositories/IEnvelopeReceiverRepository.cs

@@ -6,6 +6,7 @@ namespace EnvelopeGenerator.Application.Contracts.Repositories;
 /// <summary>
 /// 
 /// </summary>
+[Obsolete("Use IRepository")]
 public interface IEnvelopeReceiverRepository : ICRUDRepository<EnvelopeReceiver, (int Envelope, int Receiver)>
 {
     /// <summary>

EnvelopeGenerator.Application/Contracts/Services/IReceiverService.cs

@@ -1,5 +1,4 @@
-using DigitalData.Core.Abstractions;
-using DigitalData.Core.Abstraction.Application;
+using DigitalData.Core.Abstraction.Application;
 using DigitalData.Core.Abstraction.Application.DTO;
 using EnvelopeGenerator.Application.DTOs.Receiver;
 using EnvelopeGenerator.Domain.Entities;
@@ -27,12 +26,4 @@ public interface IReceiverService : ICRUDService<ReceiverCreateDto, ReceiverRead
     /// <param name="signature"></param>
     /// <returns></returns>
     Task<Result> DeleteByAsync(string? emailAddress = null, string? signature = null);
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <typeparam name="TUpdateDto"></typeparam>
-    /// <param name="updateDto"></param>
-    /// <returns></returns>
-    Task<Result> UpdateAsync<TUpdateDto>(TUpdateDto updateDto);
 }

EnvelopeGenerator.Application/Contracts/Services/ISmsSender.cs

@@ -3,9 +3,21 @@
 namespace EnvelopeGenerator.Application.Contracts.Services;
 
 //TODO: move to DigitalData.Core
+/// <summary>
+/// 
+/// </summary>
 public interface ISmsSender
 {
+    /// <summary>
+    /// 
+    /// </summary>
     string ServiceProvider { get; }
 
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="recipient"></param>
+    /// <param name="message"></param>
+    /// <returns></returns>
     Task<SmsResponse> SendSmsAsync(string recipient, string message);
 }