- traces enable/disable now use update_user_data (file-locked atomic
read-modify-write) instead of bare _load_user_data + _save_user_data —
prevents data loss under concurrent CLI invocations.
- Drop unused _get_nested_value / _get_project_attribute re-exports from
crewai_cli.utils and crewai.utilities.project_utils — no callers.
- Mark crewai.events.listeners.tracing.utils re-exports via __all__ so
CodeQL recognizes _save_user_data, is_tracing_enabled, update_user_data
(and the other tracing helpers defined in the file) as public API.