tests/gateway/test_planned_stop_watcher.py::test_watcher_fires_shutdown_when_marker_appears
tests/gateway/test_planned_stop_watcher.py::test_watcher_does_not_fire_when_marker_absent
tests/gateway/test_planned_stop_watcher.py::test_watcher_skips_when_runner_already_draining
tests/gateway/test_planned_stop_watcher.py::test_watcher_skips_when_runner_not_started
tests/gateway/test_planned_stop_watcher.py::test_watcher_responds_to_stop_event_promptly
tests/gateway/test_planned_stop_watcher.py::test_watcher_fires_only_once_when_marker_persists
tests/gateway/test_planned_stop_watcher.py::test_watcher_tolerates_marker_path_resolution_errors
tests/gateway/test_planned_stop_watcher.py::test_watcher_does_not_fire_for_foreign_pid_marker
tests/gateway/test_planned_stop_watcher.py::test_watcher_cleans_up_stale_marker_and_keeps_running
tests/gateway/test_planned_stop_watcher.py::test_planned_stop_marker_targets_self_probe_is_non_destructive
tests/gateway/test_planned_stop_watcher.py::test_planned_stop_marker_targets_self_drops_malformed