Function run_detail_for 

pub fn run_detail_for(
    engine: &Arc<Mutex<SopEngine>>,
    run_id: &str,
) -> Result<(SopRun, bool), Error>

Full detail for one run — the step results, tool calls, timings, and failure output that SopRunSummary deliberately omits, plus whether the run is still live. SopEngine::get_run is the single lookup owner: it already searches active runs and the retained terminal window.