Refaktorisierung des Flag-Enums: Flag auf nullable gesetzt, HasFlag-Methode für Nullable-Prüfung aktualisiert, Null-Flag entfernt, SecurityBreachOrDataIntegrity für überlappende Probleme hinzugefügt.

DigitalData.Core.Application/Flag.cs

@@ -14,6 +14,19 @@
         /// <summary>
         /// Indicates a security breach or vulnerability has been detected during the service operation.
         /// </summary>
-        SecurityBreach
+        SecurityBreach,
+
+        /// <summary>
+        /// Indicates a potential issue with data integrity during the service operation.
+        /// This flag is used when data may have been altered, corrupted, or is otherwise unreliable,
+        /// which could impact the accuracy or trustworthiness of the operation's results.
+        /// </summary>
+        DataIntegrityIssue,
+
+        /// <summary>
+        /// Indicates that either a security breach, a data integrity issue, or both have been detected during the service operation.
+        /// This flag is used when one or both types of issues are present, requiring heightened attention to both security and data accuracy.
+        /// </summary>
+        SecurityBreachOrDataIntegrity
     }
 }