Ruling retire-longinusx. AetherDrive.Manoeuvre and the drive line in Ship.RecalculateEnvelope go: the envelope
sums thrusters only. TheDrivesReportReadsItsStateAndTheShipsSpeed, the EvGemini fixture and the drive-only asserts
are deleted. Sideways jinks and the shooters' target move to the generated Djinni; the gun platforms (FastBlast+-,
ColdFire) are EvLonginus, the Duel's guns on a Longinus. TheThreeShipsOrder becomes TheShipsOrder.
Not built or run on its own: verified together with the mount term at the head.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>