r10 AQ23KKNI leg_clock_begin no-field consumer proof (no product, no rig), 2026-09-14T07:07:34Z, pwsh7 bfb46af8:
run1 (clean dir): rc=0; setup-start.utc=2026-09-14T07:07:07Z, epoch=1789369627, deadline=1789369747, delta=120; epoch->utc = same stamp => ONE observation.
run2 (files exist): CreateNew "already exists", rc=1, deadline UNCHANGED => refuses, never resets.