chore: import upstream snapshot with attribution

tests/test_hitl_utils.py

@@ -0,0 +1,14 @@
+from types import SimpleNamespace
+
+from tests.utils.hitl import RecordingEditor
+
+
+def test_recording_editor_records_operations() -> None:
+    editor = RecordingEditor()
+    operation = SimpleNamespace(path="file.txt")
+
+    editor.create_file(operation)
+    editor.update_file(operation)
+    editor.delete_file(operation)
+
+    assert editor.operations == [operation, operation, operation]