refactor: Entfernte die HandleException Methode aus der CRUDService Klasse und dem Interface

- Die Methode `HandleException` wurde aus der `CRUDService` Klasse entfernt.
- Die Methode wurde ebenfalls aus dem `ICRUDService` Interface entfernt.

DigitalData.Core.Abstractions/Application/ICRUDService.cs

@@ -45,16 +45,5 @@ namespace DigitalData.Core.Abstractions.Application
         /// <param name="id">The identifier of the entity to check.</param>
         /// <returns>A task that represents the asynchronous operation. The task result contains a boolean value indicating whether the entity exists.</returns>
         Task<bool> HasEntity(TId id);
-
-        /// <summary>
-        /// Handles exceptions that occur within service actions. This method should log the exception
-        /// and return an String that contains information about the error, which can then be sent to the client.
-        /// The implementation should determine the appropriate level of detail to include in the error message
-        /// based on security and usability considerations.
-        /// </summary>
-        /// <param name="ex">The exception that occurred during the controller action.</param>
-        /// <returns>An string instance representing the outcome of the error handling process.
-        /// This includes a flag indicating the operation was unsuccessful and any relevant error messages.</returns>
-        string HandleException(Exception ex);
     }
 }

DigitalData.Core.Application/CRUDService.cs

@@ -113,15 +113,5 @@ namespace DigitalData.Core.Application
             var entity = await _repository.ReadByIdAsync(id);
             return entity is not null;
         }
-
-        /// <summary>
-        /// Handles exceptions that occur during CRUD operations, providing a structured string.
-        /// </summary>
-        /// <param name="ex">The exception that was caught during CRUD operations.</param>
-        /// <returns>A <see cref="IServiceMessage"/> containing information about the failure, including a user-friendly error message and additional error details.</returns>
-        public virtual string HandleException(Exception ex)
-        {
-            return $"An unexpected error occurred on the server side. Please inform the IT support team.\n{ex.GetType().Name}\n{ex.Message}";
-        }
     }
 }