Funktion: Erweiterung von IServiceMessage mit Methoden zur Nachrichtenverwaltung

- Hinzufügen von Erweiterungsmethoden zu IServiceMessage für das Hinzufügen von Client-, Trace-, Debug-, Informations-, Warn-, Fehler- und kritischen Nachrichten.
- Einbeziehung von Methoden für direkte Nachrichten und auf Enum basierende Schlüssel, die Lokalisierung und benutzerdefinierte Formatierung unterstützen.

DigitalData.Core.Application/ServiceResult.cs

@@ -9,17 +9,47 @@ namespace DigitalData.Core.Application
     /// <typeparam name="T">The type of data returned by the service operation, if any.</typeparam>
     public class ServiceResult<T> : ServiceMessage, IServiceResult<T>
     {
+        /// <summary>
+        /// Initializes a new instance of the ServiceResult class.
+        public ServiceResult()
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the ServiceResult class, specifying the success status is false and data.
+        /// Optionally, a function for translating message keys can be provided.
+        /// If a translation function is provided, it will be used for both string and enum message keys.
+        /// </summary>
+        /// <param name="data">The data associated with a successful operation.</param>
+        /// <param name="stringKeyTranslator">A function that translates a string key into its localized representation.
+        /// If provided, it will also be adapted for translating enum keys by converting them to strings first.</param>
+        [Obsolete("Deprecated: initialize objects using object initializers instead.")]
+        public ServiceResult(T? data)
+        {
+            Data = data;
+            IsSuccess = false;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the ServiceResult class with specified success status and data.
+        /// </summary>
+        /// <param name="data">The data associated with a successful operation.</param>
+        /// <param name="isSuccess">Indicates whether the service operation was successful.</param>
+        [Obsolete("Deprecated: initialize objects using object initializers instead.")]
+        public ServiceResult(T? data, bool isSuccess) : base(isSuccess) => Data = data;
+
         /// <summary>
         /// Initializes a new instance of the ServiceResult class with specified success status, data, and messages.
         /// </summary>
         /// <param name="data">The data associated with a successful operation.</param>
         /// <param name="isSuccess">Indicates whether the service operation was successful.</param>
         /// <param name="messages">An array of messages related to the operation's outcome.</param>
+        [Obsolete("Deprecated: Use ClientMessages instead.")]
         public ServiceResult(T? data, bool isSuccess, params string[] messages) : base(isSuccess, messages) => Data = data;
 
         /// <summary>
         /// Gets or sets the data resulting from the service operation.
         /// </summary>
-        public T? Data { get; set; }
+        public T? Data { get; set; } = default;
     }
 }