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Ports the Unity POC soul systems into the sim: - Warmth echoes: villagers remember who fed them (+0.15) and who turned them away (-0.25). Ask-for-food targeting runs on memory, not omniscience; the remembered-cold are not asked. Echoes fade daily. - Refusing the hungry while holding food marks the refuser (others-regard debris) and is logged; empty-handed is not refusal. - Harvesting below the 50% commons line marks the taker per unit taken. - Soul-to-soul atmospheric pressure (SoulFieldSystem port): encased souls darken nearby atmospheres, clear souls lighten them. - Debris costs biologically: nourishment drains faster and meals restore less as the soul encases. - Instrumentation: avg_debris + refusals in daily stats; per-villager nourish/health/debris; refusals in the contact log; map dots dim with encasement. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>