Staging

Preconditions for start_run: intake routines (beamtime_intake, mount_sample) that register a Subject and mount it on the apparatus, and gate checks (proposal_clearance, run_start_gated_by_clearance) that prove an Active Clearance is in place before any acquisition.

For the Runs, Subjects, and Assets these scenarios produce, see the per-beamline Deployments inventories.

Scenarios

Scenario	Gist
beamtime_intake setup	Beamtime intake at APS 2-BM.
mount_sample setup	Mount sample at APS 2-BM.
proposal_clearance fsm	Proposal-clearance FSM walk at APS 2-BM.
run_start_gated_by_clearance gate	Run.start cross-BC gate enforcement at APS 2-BM.