Fix client-side log spam (#16222)

Content.Shared/Anomaly/SharedAnomalySystem.cs

@@ -130,6 +130,7 @@ public abstract class SharedAnomalySystem : EntitySystem
         var variation = Random.NextFloat(-component.PulseVariation, component.PulseVariation) + 1;
         component.NextPulseTime = Timing.CurTime + GetPulseLength(component) * variation;
 
+        if (_net.IsServer)
             _sawmill.Info($"Performing anomaly pulse. Entity: {ToPrettyString(uid)}");
 
         // if we are above the growth threshold, then grow before the pulse
@@ -164,6 +165,7 @@ public abstract class SharedAnomalySystem : EntitySystem
             return;
 
         Log.Add(LogType.Anomaly, LogImpact.High, $"Anomaly {ToPrettyString(uid)} began to go supercritical.");
+        if (_net.IsServer)
             _sawmill.Info($"Anomaly is going supercritical. Entity: {ToPrettyString(uid)}");
 
         var super = EnsureComp<AnomalySupercriticalComponent>(uid);
@@ -189,7 +191,9 @@ public abstract class SharedAnomalySystem : EntitySystem
 
         Audio.PlayPvs(component.SupercriticalSound, uid);
 
+        if (_net.IsServer)
             _sawmill.Info($"Raising supercritical event. Entity: {ToPrettyString(uid)}");
+
         var ev = new AnomalySupercriticalEvent();
         RaiseLocalEvent(uid, ref ev);
 
@@ -205,6 +209,7 @@ public abstract class SharedAnomalySystem : EntitySystem
     public void EndAnomaly(EntityUid uid, AnomalyComponent? component = null, bool supercritical = false)
     {
         // Logging before resolve, in case the anomaly has deleted itself.
+        if (_net.IsServer)
             _sawmill.Info($"Ending anomaly. Entity: {ToPrettyString(uid)}");
         Log.Add(LogType.Anomaly, LogImpact.Extreme, $"Anomaly {ToPrettyString(uid)} went supercritical.");