Function spawn_scan_task 

pub fn spawn_scan_task(
    view: BufferId,
    query: String,
    options: ProjectSearchOptions,
    service: ProjectSearchServiceHandle,
    events: Arc<EventBus>,
    cancel: CancellationToken,
) -> JoinHandle<()> 

Public so the mode’s gr refresh handler (M.10.5, registered via ActionHandlerRegistry from on_activate) can respawn after cancelling the prior task.