test(log-analysis): document duplicate PARM fixture

Signed-off-by: nflyernz <319460892+nflyernz@users.noreply.github.com>

Author: nflyernz

tests/test_data_model_parameter_history.py

@@ -16,6 +16,9 @@
 from ardupilot_methodic_configurator.log_analysis.data_model_log_data import LogData, MessageSchema
 from ardupilot_methodic_configurator.log_analysis.data_model_parameter_history import ParameterHistory
 
+# The PARM LogData fixture intentionally mirrors backend orchestration setup.
+# pylint: disable=duplicate-code
+
 
 def _log_data(records: list[tuple[float, str, float]]) -> LogData:
     log_data = LogData()