Function fleet_bulk_stop_with_override 

pub(crate) async fn fleet_bulk_stop_with_override(
    state: &AppState,
    by: &str,
    targets: Vec<String>,
    signal: Option<&str>,
    staged: Option<StagePlanInput>,
) -> (FleetActionResult, Vec<PendingView>)

FleetBulkStop from an agent (the HTTP path; the Swarm UI’s own fleet.bulk-stop is the user and stops at once): every target running on this instance waits for its user’s 15 s override, all windows in parallel (docs/specs/SPEC_AGENT_SELF_QUIT_2026_09_24.md §6.5). A target running on another instance on this machine is asked there, in that instance’s own window (forward_stop_pending). Targets running nowhere go through fleet_bulk_stop_impl as before, staged included.