AetherDriveData and AetherDrive, Union(12) (now a retired-do-not-reuse comment, as 26 is),
HardpointType.AetherDrive (last member, nothing shifts), Ship's drive sets, aggregates and
Axis write, the five request-field rows, GameplaySettings Aether multipliers, ShipInstance's
drive particles, SchematicDisplay's RPM display and AetherDriveUi, the undock refusal's drive
clause, the drive prefab and material, and AetherDb's drive roles and brownout row. The
design is kept at parked/aether-drive.
Adds EveryShippedShipHullHasATopSpeed. ARPG.unity still holds stale serialized references to
the removed SchematicDisplay fields and the RPM Display object; the next commit removes them.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
