znetsixe 2af6c904da feat(mgc): rendezvous lock + emergency bypass (no re-plan mid-rendezvous) ...

Once a rendezvous plan is committed it now runs to completion untouched: an
ordinary new setpoint arriving while the group is 'working' is remembered
(latest wins) and dispatched sequentially when the group reaches 'ready',
instead of aborting + re-planning. A re-plan mid-flight dropped the in-flight
schedule and re-deferred a pump that was mid-sequence, parking starting pumps
at minimum flow.

Only an EMERGENCY pre-empts the lock: a stop (≤0) or a pressure excursion.
_isUrgentDemand (which pre-empted on any large step) is replaced by
_isEmergencyDemand; the large-step pre-emption is gone — large operator steps
now defer like any other setpoint. _pressureEmergency() reads
planner.emergencyPressurePa and is INERT until that threshold is configured;
handlePressureChange fires a latched bypass dispatch when it breaches.

Verified live on the E2E Isolated MGC rig: a 1→2 pump staging transition ramps
the added pump straight through (no wait-at-minimum, no start-then-stop) and the
group total climbs monotonically. (The Pump-tab node's hunting is a separate
demand-feedback-loop issue in that flow's wiring, not the rendezvous.)

Integration tests now settle to 'ready' between demands (waitReady) since the
lock defers setpoints arriving mid-move.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-27 17:47:50 +02:00

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