furher shorts improvements

generic/models.py

@@ -1963,4 +1963,32 @@ class CimarSeriesThumbnail(models.Model):
     image = models.ImageField(upload_to="cimar_series_thumbnails")
 
     def __str__(self):
-        return f"{self.series_id}"
+        return f"{self.series_id}"
+
+
+class FindingBase(models.Model):
+    description = models.TextField(
+        null=True, blank=True, help_text="Findings on the question"
+    )
+    annotation_json = models.TextField(null=True, blank=True)
+    viewport_json = models.TextField(null=True, blank=True)
+    # This has been migrated to install the image id (not index)
+    current_image_id_index = models.TextField(null=True, blank=True)
+
+    # TODO add tags
+    # tags = models.ManyToManyField(Tag, blank=True)
+
+    class Meta:
+        abstract = True
+
+    def __str__(self):
+        return self.description
+
+    def annotation_as_string(self) -> str:
+        return json.dumps(self.annotation_json)
+
+    def get_pretty_annotation_json(self):
+        return get_pretty_json(json.loads(self.annotation_json))
+
+    def get_pretty_viewport_json(self): 
+        return get_pretty_json(json.loads(self.viewport_json))