feat(EnvelopeReceiverReadOnly): Controller initialisieren

- Join mit Receiver und Read
 - DI-Konfiguration hinzufügen
 - Auslöser hinzufügen (TBSIG_ENVELOPE_RECEIVER_READ_ONLY_UPD)

EnvelopeGenerator.Application/DTOs/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyDto.cs

@@ -1,4 +1,6 @@
-namespace EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly
+using EnvelopeGenerator.Application.DTOs.Receiver;
+
+namespace EnvelopeGenerator.Application.DTOs.EnvelopeReceiverReadOnly
 {
     public record EnvelopeReceiverReadOnlyDto(
         long Id,
@@ -9,5 +11,6 @@
         string AddedWho,
         EnvelopeDto? Envelope = null,              
         string? ChangedWho = null,
-        DateTime? ChangedWhen = null);
+        DateTime? ChangedWhen = null,
+        ReceiverReadDto? Receiver = null);
 }