feat(EnvelopeReceiverReadOnly): Controller initialisieren

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

EnvelopeGenerator.Domain/Entities/EnvelopeReceiverReadOnly.cs

@@ -1,6 +1,7 @@
 using System.ComponentModel.DataAnnotations.Schema;
 using System.ComponentModel.DataAnnotations;
 using DigitalData.Core.Abstractions;
+using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
 
 namespace EnvelopeGenerator.Domain.Entities
 {
@@ -16,9 +17,13 @@ namespace EnvelopeGenerator.Domain.Entities
         [Required]
         public long EnvelopeId { get; init; }
 
+        [ForeignKey("EnvelopeId")]
+        public Envelope? Envelope { get; init; }
+
         [Column("RECEIVER_MAIL")]
         [Required]
         [StringLength(250)]
+        [TemplatePlaceholder("NAME_RECEIVER")]
         public required string ReceiverMail { get; init; }
 
         [Column("DATE_VALID")]
@@ -30,6 +35,8 @@ namespace EnvelopeGenerator.Domain.Entities
         [StringLength(100)]
         public required string AddedWho { get; init; }
 
+        public Receiver? Receiver { get; init; }
+
         [Column("ADDED_WHEN")]
         [Required]
         public DateTime AddedWhen { get; init; }