refactor: Beziehung zwischen „Object“ und „History“ hinzufügen.

src/WorkFlow.Domain/Entities/PObject.cs

@@ -28,6 +28,5 @@ public class PObject
     [ForeignKey("ObjStateId")]
     public virtual PObjectState? State { get; set; }
 
-    [ForeignKey("ObjStateId")]
-    public virtual IEnumerable<PObjectStateHist>? StateHistory { get; set; } = Array.Empty<PObjectStateHist>();
+    public virtual IEnumerable<PObjectStateHist>? StateHistories { get; set; }
 }

src/WorkFlow.Domain/Entities/PObjectStateHist.cs

@@ -62,6 +62,4 @@ public class PObjectStateHist
 
     [ForeignKey("StateId")]
     public virtual State? State1 { get; set; }
-
-    public virtual IEnumerable<PControlsTF>? TFControls { get; set; }
 }