[Effect] 스킬 이펙트 디버그 로그 제거

불필요한 Debug.Log 및 Debug.LogWarning 호출 제거로 프로덕션 로그 정리

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Assets/Scripts/Skills/Effects/AbnormalityEffect.cs

@@ -18,21 +18,12 @@ namespace Colosseum.Skills.Effects
         {
             if (target == null) return;
 
-            if (abnormalityData == null)
+            if (abnormalityData == null) return;
-            {
-                Debug.LogWarning($"[AbnormalityEffect] AbnormalityData is not assigned");
-                return;
-            }
 
             var abnormalityManager = target.GetComponent<AbnormalityManager>();
-            if (abnormalityManager == null)
+            if (abnormalityManager == null) return;
-            {
-                Debug.LogWarning($"[AbnormalityEffect] Target {target.name} has no AbnormalityManager");
-                return;
-            }
 
             abnormalityManager.ApplyAbnormality(abnormalityData, caster);
-            Debug.Log($"[AbnormalityEffect] Applied {abnormalityData.abnormalityName} to {target.name} from {caster?.name ?? "unknown"}");
         }
 
         /// <summary>

Assets/Scripts/Skills/Effects/DamageEffect.cs

@@ -41,8 +41,6 @@ namespace Colosseum.Skills.Effects
             {
                 damageable.TakeDamage(totalDamage, caster);
             }
-
-            Debug.Log($"[Damage] {caster.name} -> {target.name}: {totalDamage:F1} ({damageType})");
         }
 
         /// <summary>

Assets/Scripts/Skills/Effects/HealEffect.cs

@@ -29,8 +29,6 @@ namespace Colosseum.Skills.Effects
             {
                 damageable.Heal(totalHeal);
             }
-
-            Debug.Log($"[Heal] {caster.name} -> {target.name}: {totalHeal:F1}");
         }
 
         /// <summary>

Assets/Scripts/Skills/Effects/KnockbackEffect.cs

@@ -25,8 +25,6 @@ namespace Colosseum.Skills.Effects
             // TODO: 실제 물리 시스템 연동
             // if (target.TryGetComponent<Rigidbody>(out var rb))
             //     rb.AddForce(knockback, ForceMode.Impulse);
-
-            Debug.Log($"[Knockback] {target.name}: {knockback}");
         }
     }
 }