- Sign test measures rate response on every gimbal axis and picks the one
that actually answers the differential push -> pitchIndex is now MEASURED
per ship (build orientation no longer matters). Verified both-direction
response accepted at half threshold. Tilt guard watches all axes.
- Altitude supervisor: drifting out of the measuring band re-centers and
retries instead of aborting; single 7-min deadline. Faster hover trim
(0.05 -> 0.12, matches verified Ki_climb) plus an 8 s settle phase.
- Single-balloon ships: sign test marks itself done, FLY zeroes u_diff.
- Cockpit terminal now explains link status (OFFLINE checklist); autopilot
standby screen warns loudly when no modem is attached.
- Failure text points at cross-wired links (both burners firing on one pulse).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>