fix: Remove conflicting scale-down from minInstances useEffect

The second useEffect was unconditionally scaling down servers when
count exceeded minInstances, which conflicted with the CPU-based
auto-scaling in the game loop. Now the useEffect only handles
scaling UP to meet minimum requirements, while CPU-based scale-up
and scale-down remain controlled by the game loop thresholds.

Author: bobbyonmagic

components/games/scaling-simulator.tsx

@@ -414,15 +414,6 @@ export default function ScalingSimulator() {
       }, 500);
       return () => clearTimeout(timer);
     }
-    
-    // Scale down if above minimum (and no load requiring extra capacity)
-    if (healthyServers.length > scalingConfig.minInstances && healthyServers.length > 1) {
-      const timer = setTimeout(() => {
-        const serverToRemove = healthyServers[healthyServers.length - 1];
-        if (serverToRemove) removeServer(serverToRemove.id);
-      }, 500);
-      return () => clearTimeout(timer);
-    }
   }, [scalingConfig.autoScalingEnabled, scalingConfig.minInstances, hasLoadBalancer, servers, addServer, removeServer]);
 
   // Reset game