refactor(IAsymmetricKey): Die Implementierung von IUniqueSecurityContext wurde entfernt und stattdessen die Eigenschaft Id hinzugefügt.

- Aktualisierte verwandte Implementierungen.

DigitalData.Core.Security/RSAKey/RSATokenDescriptor.cs

@@ -11,6 +11,11 @@ namespace DigitalData.Core.Security.RSAKey
         public string? ApiRoute { get; init; }
 
         #region SecurityTokenDescriptor Map
+        /// <summary>
+        /// Gets or sets the value of the 'audience' claim.
+        /// </summary>
+        public string Audience { get; set; }
+
         /// <summary>
         /// Defines the compression algorithm that will be used to compress the JWT token payload.
         /// </summary>
@@ -26,6 +31,11 @@ namespace DigitalData.Core.Security.RSAKey
         /// </summary>
         public DateTime? Expires { get; set; }
 
+        /// <summary>
+        /// Gets or sets the issuer of this <see cref="SecurityTokenDescriptor"/>.
+        /// </summary>
+        public string Issuer { get; set; }
+
         /// <summary>
         /// Gets or sets the time the security token was issued. This value should be in UTC.
         /// </summary>