Found 4 actionable issues. (1) HIGH: AutoDirector camera ping-pongs between similarly-scored pets because the -30 focused penalty causes structural oscillation that bypasses the 5s hold guard — fix by requiring hysteresis margin during hold period. (2) MEDIUM: WorldBrain `findNotableCreature` always picks the same creature (Kronlyra) because it iterates in fixed registry order with no rotation — fix by shuffling and tracking recently-highlighted creatures. (3) MEDIUM: Nighttime camera stalls 60+ seconds on sleeping creatures because `idleRotationInterval=30` is dead code — implement it as a forced rotation timer. (4) MEDIUM: Brain performance still hits 500ms because getNearby/egg checks run before the fast path gate — move them behind the gate and add true early return for passive creatures.
Auto-Improver: Cycle #18
