Function run_coding_turn 

pub(crate) async fn run_coding_turn(
    client: &Client,
    models: &ModelRoles,
    coding_system: &str,
    user: &str,
    scheduler_cwd: &Path,
    edit_tl: &ToolLoopConfig,
    verbose: bool,
    stream_stdout: bool,
    stderr_color: Style,
    active_model: &mut ActiveModelPrinter,
    total_usage: &mut Usage,
    turn_timeout: Duration,
    interrupted: Arc<AtomicBool>,
) -> Result<Result<String, String>>