Five units out, gates written but not wired, and the four live subsystems
still to go. Captures the decisions that came from measurement rather than
the plan -- common.sh and periodic_background/lib both stay -- and the
traps already paid for, so the next session does not rediscover them.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PJrqKERAo5QUeEHWS5Asgp
