Module snapshot 

2026-09-25: The scheduler’s observability snapshot: one Copy struct the scheduler publishes each loop tick into the run’s SnapshotCell, which the TUI reads.

Owner: speculative. Invariants:

• A SnapshotCell holds at most the latest snapshot; publish replaces it whole.

Structs

SchedulerSnapshot

SnapshotCell

2026-09-25: The run’s snapshot cell: the scheduler writes it, the TUI reads it. serve creates one per run and shares it as an Arc, by the same route as SchedLevers.

Enums

MtpModeSnap