Make ProfileView string properties nullable

Changed several ProfileView properties (Type, Mandantor, ProfileName, LogLevel, Language, AddedWho) from non-nullable strings with default values to nullable strings. This allows these fields to be null instead of defaulting to an empty string.

src/ReC.Domain/Entities/ProfileView.cs

@@ -8,23 +8,23 @@ public record ProfileView
     
     public byte TypeId { get; init; }
     
-    public string Type { get; init; } = string.Empty;
+    public string? Type { get; init; }
     
-    public string Mandantor { get; init; } = string.Empty;
+    public string? Mandantor { get; init; }
 
-    public string ProfileName { get; init; } = string.Empty;
+    public string? ProfileName { get; init; }
 
     public string? Description { get; init; }
 
     public byte LogLevelId { get; init; }
 
-    public string LogLevel { get; init; } = string.Empty;
+    public string? LogLevel { get; init; }
 
     public short LanguageId { get; init; }
 
-    public string Language { get; init; } = string.Empty;
+    public string? Language { get; init; }
 
-    public string AddedWho { get; init; } = string.Empty;
+    public string? AddedWho { get; init; }
 
     public DateTime AddedWhen { get; init; }
 
@@ -37,4 +37,4 @@ public record ProfileView
     public DateTime? LastRun { get; init; }
 
     public string? LastResult { get; init; }
-}
+}