start moking case display sets

atlas/models.py

@@ -1102,6 +1102,32 @@ class SeriesDetail(models.Model):
     class Meta:
         ordering = ("sort_order",)
 
+class CaseDisplaySet(models.Model, AuthorMixin):
+    case = models.ForeignKey(Case, on_delete=models.CASCADE)
+
+    name = models.CharField(
+        max_length=255,
+        help_text="Name of the display set",
+    )
+
+    description = models.TextField(
+        blank=True,
+        help_text="Description of the display set",
+    )
+
+    viewerstate = models.JSONField(
+        null=True,
+        blank=True,
+        help_text="Viewer state for the display set",
+    )
+
+    annotations = models.JSONField(
+        null=True,
+        blank=True,
+        help_text="Annotations for the display set",
+    )
+   
+
 
 class CaseDetail(models.Model):
     """A through table that stores the relationship between a case and a collection.