Add delete functionality for image annotations in question detail view

anatomy/views.py

@@ -1504,6 +1504,17 @@ def question_save_annotation(request, pk):
         return JsonResponse(data, status=400)
 
 
+@user_is_author_or_anatomy_checker
+def question_clear_annotation(request, pk):
+    """Clear the stored image annotations for a question."""
+    if request.method == "POST":
+        question = get_object_or_404(AnatomyQuestion, pk=pk)
+        question.image_annotations = ""
+        question.save(update_fields=["image_annotations"])
+        return JsonResponse({"status": "success"}, status=200)
+    return JsonResponse({"status": "error"}, status=400)
+
+
 GenericExamViews = ExamViews(
     Exam, AnatomyQuestion, Answer, UserAnswer, "anatomy", "anatomy"
 )