ZoneFingerprint digests rock spin and periods, orbital entities (type, position, rail), other entities by type, the
pack radius, a 9x9 height grid at two times and optionally PopulatedRadius (finding fingerprint-omits).
TrojanSwarmTests.BaseDigest is repinned with it on Yggdrasil at C1's generator, swarms off.
BeltShapes.CopiedRail replaces StationPlacementTests.SwarmRail and the RidesRail slot filters of
ChildrenWithinReachTests: a rail a belt rides that copies a body's rail is never a placed slot.
The Zones fixture counts the belts the generator writes and those with no field kind, before Zone's own
FieldKinds.Ensure; EveryBeltIsKindedAtGeneration pins it at zero (finding ensure-unpinned).
AdjacentBeltsKeepTheirSpacing places two belts side by side and pins the second's inner edge a sibling spacing
outside the first's outer edge (follow-up belt-after-belt-edge-pin).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ZoneFingerprint pins a swarmless zone to digests computed at 67517f40 over seeds
1-6. Builds.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
