fix: add score field in validation error to handle front error display

backend/core/serializers.py

@@ -504,7 +504,7 @@ def validate_score(self, value):
         if value is not None:
             if value < framework.min_score or value > framework.max_score:
                 raise serializers.ValidationError(
-                    f"Score must be between {framework.min_score} and {framework.max_score}"
+                    {"score": f"Score must be between {framework.min_score} and {framework.max_score}"}
                 )
         return value