- Planet count is now a single global rule (20% barren, else 2–4 planets)
instead of per-type spreads; the starting system always holds a gas giant
plus a rocky world beside the home world.
- Every planet hosts one settlement by class (habitable rocky → colony, other
rocky/ice/lava → mining station, gas → cloud base); free-space stations and
beacons still roll per archetype with the core→rim gradient.
- Old probabilistic planet-settlement path kept behind allPlanetsSettled flag.
- Layout max drops to 6 objects (4 planets + 2 stations); the 11-object
two-orbit case remains as a defensive fallback.
- Update tests, docs, and add rocky-land video asset.
Brian Fertig
09dfd00dd3