update read envelope, receiver and envelope-receiver queries to inhered from query-bases

EnvelopeGenerator.Application/EnvelopeReceivers/Queries/ReadEnvelopeReceiverQuery.cs

@@ -1,10 +1,9 @@
 using EnvelopeGenerator.Application.Dto.EnvelopeReceiver;
 using EnvelopeGenerator.Application.Envelopes.Queries;
-using DigitalData.Core.Exceptions;
 using EnvelopeGenerator.Application.Extensions;
 using EnvelopeGenerator.Application.Receivers.Queries;
-using EnvelopeGenerator.Extensions;
 using MediatR;
+using EnvelopeGenerator.Application.Model;
 
 namespace EnvelopeGenerator.Application.EnvelopeReceivers.Queries;
 
@@ -43,47 +42,7 @@ namespace EnvelopeGenerator.Application.EnvelopeReceivers.Queries;
 /// Die Antwort enthält Details wie den Include, die Zuordnung zwischen Umschlag und Empfänger 
 /// sowie zusätzliche Metadaten.
 /// </remarks>
-public record ReadEnvelopeReceiverQuery : IRequest<IEnumerable<EnvelopeReceiverDto>>
-{
-    /// <summary>
-    /// 
-    /// </summary>
-    public string? Key
-    { 
-        get => Envelope?.Uuid is string uuid && Receiver?.Signature is string signature
-                ? (uuid, signature).EncodeEnvelopeReceiverId()
-                : null;
-        init
-        {
-            if (value is null)
-                return;
-
-            (string? EnvelopeUuid, string? ReceiverSignature)  = value.DecodeEnvelopeReceiverId();
-            if(string.IsNullOrEmpty(EnvelopeUuid) || string.IsNullOrEmpty(ReceiverSignature))
-            {
-                throw new BadRequestException("Der EnvelopeReceiverKey muss ein gültiger Base64-kodierter String sein, der die EnvelopeUuid und die ReceiverSignature enthält.");
-            }
-            Envelope = new ReadEnvelopeQuery()
-            {
-                Uuid = EnvelopeUuid
-            };
-            Receiver = new ReadReceiverQuery()
-            {
-                Signature = ReceiverSignature
-            };
-        }
-    }
-
-    /// <summary>
-    /// Der Umschlag, der mit dem Empfänger verknüpft ist.
-    /// </summary>
-    public ReadEnvelopeQuery? Envelope { get; set; }
-
-    /// <summary>
-    /// Der Empfänger, der mit dem Umschlag verknüpft ist.
-    /// </summary>
-    public ReadReceiverQuery? Receiver { get; set; }
-};
+public record ReadEnvelopeReceiverQuery : EnvelopeReceiverQueryBase<ReadEnvelopeQuery, ReadReceiverQuery>, IRequest<IEnumerable<EnvelopeReceiverDto>>;
 
 /// <summary>
 ///