feat: 플레이어 탱킹 및 지원 스킬 1차 구현

- 도발, 방어 태세, 철벽 스킬과 위협 생성 배율 시스템을 추가

- 치유, 광역 치유, 보호막 스킬과 관련 이상상태/이펙트 자산을 구성

- 보호막 흡수 로직과 체력 HUD 보너스 표시를 PlayerNetworkController, PlayerHUD, StatBar에 반영

- 플레이어 프리팹 슬롯과 디버그 메뉴를 확장해 탱킹·지원 스킬 검증 경로를 추가

- Unity 컴파일과 런타임 테스트에서 도발, 치유, 광역 치유, 보호막 발동 및 보호막 수치 적용을 확인

Assets/_Game/Scripts/Skills/Effects/CombatBuffEffect.cs

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+using UnityEngine;
+
+using Colosseum.Abnormalities;
+using Colosseum.Combat;
+
+namespace Colosseum.Skills.Effects
+{
+    /// <summary>
+    /// 이상상태와 위협 생성 배율을 함께 적용하는 자기 강화 효과입니다.
+    /// 탱킹 스킬의 방어/위협 유지 용도로 사용합니다.
+    /// </summary>
+    [CreateAssetMenu(fileName = "CombatBuffEffect", menuName = "Colosseum/Skills/Effects/Combat Buff")]
+    public class CombatBuffEffect : SkillEffect
+    {
+        [Header("Buff")]
+        [Tooltip("적용할 이상상태 데이터")]
+        [SerializeField] private AbnormalityData abnormalityData;
+
+        [Tooltip("함께 적용할 위협 생성 배율")]
+        [Min(0f)] [SerializeField] private float threatMultiplier = 1f;
+
+        [Tooltip("위협 생성 배율 지속 시간")]
+        [Min(0f)] [SerializeField] private float threatMultiplierDuration = 0f;
+
+        protected override void ApplyEffect(GameObject caster, GameObject target)
+        {
+            if (target == null)
+                return;
+
+            ApplyAbnormality(target, caster);
+            ApplyThreatMultiplier(target);
+        }
+
+        private void ApplyAbnormality(GameObject target, GameObject caster)
+        {
+            if (abnormalityData == null)
+                return;
+
+            AbnormalityManager abnormalityManager = target.GetComponent<AbnormalityManager>();
+            if (abnormalityManager == null)
+                return;
+
+            abnormalityManager.ApplyAbnormality(abnormalityData, caster);
+        }
+
+        private void ApplyThreatMultiplier(GameObject target)
+        {
+            if (threatMultiplier <= 0f || threatMultiplierDuration <= 0f)
+                return;
+
+            ThreatController threatController = target.GetComponent<ThreatController>();
+            if (threatController == null)
+            {
+                threatController = target.AddComponent<ThreatController>();
+            }
+
+            threatController.ApplyThreatMultiplier(threatMultiplier, threatMultiplierDuration);
+        }
+    }
+}

Assets/_Game/Scripts/Skills/Effects/CombatBuffEffect.cs.meta

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+fileFormatVersion: 2
+guid: 639a0e2e83c292b4aaf5bc4b1532f099

Assets/_Game/Scripts/Skills/Effects/ShieldEffect.cs

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+using UnityEngine;
+
+using Colosseum.Player;
+using Colosseum.Stats;
+
+namespace Colosseum.Skills.Effects
+{
+    /// <summary>
+    /// 보호막 효과입니다.
+    /// 대상에게 일정 시간 동안 피해를 흡수하는 보호막을 부여합니다.
+    /// </summary>
+    [CreateAssetMenu(fileName = "ShieldEffect", menuName = "Colosseum/Skills/Effects/Shield")]
+    public class ShieldEffect : SkillEffect
+    {
+        [Header("Shield")]
+        [Tooltip("기본 보호막 수치")]
+        [Min(0f)] [SerializeField] private float baseShield = 100f;
+
+        [Tooltip("회복력 계수")]
+        [Min(0f)] [SerializeField] private float shieldScaling = 0.5f;
+
+        [Tooltip("보호막 지속 시간")]
+        [Min(0f)] [SerializeField] private float duration = 5f;
+
+        protected override void ApplyEffect(GameObject caster, GameObject target)
+        {
+            if (target == null)
+                return;
+
+            PlayerNetworkController networkController = target.GetComponent<PlayerNetworkController>();
+            if (networkController == null)
+                return;
+
+            float totalShield = CalculateShield(caster);
+            networkController.ApplyShield(totalShield, duration);
+        }
+
+        private float CalculateShield(GameObject caster)
+        {
+            CharacterStats stats = caster != null ? caster.GetComponent<CharacterStats>() : null;
+            if (stats == null)
+                return baseShield;
+
+            return baseShield + (stats.HealPower * shieldScaling);
+        }
+    }
+}

Assets/_Game/Scripts/Skills/Effects/ShieldEffect.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 6598d3be8b5522b4494d1f60cbc1986c

Assets/_Game/Scripts/Skills/Effects/TauntEffect.cs

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+using System.Collections.Generic;
+
+using UnityEngine;
+
+using Colosseum.Combat;
+using Colosseum.Enemy;
+
+namespace Colosseum.Skills.Effects
+{
+    /// <summary>
+    /// 주변 적의 위협 수치를 높여 주 대상을 자신에게 돌리는 도발 효과입니다.
+    /// 필요 시 시전자에게 임시 위협 생성 배율도 함께 부여합니다.
+    /// </summary>
+    [CreateAssetMenu(fileName = "TauntEffect", menuName = "Colosseum/Skills/Effects/Taunt")]
+    public class TauntEffect : SkillEffect
+    {
+        [Header("Taunt Settings")]
+        [Tooltip("도발 시 추가할 기본 위협 수치")]
+        [Min(0f)] [SerializeField] private float flatThreatAmount = 50f;
+
+        [Tooltip("현재 최고 위협보다 이 값만큼 더 높게 설정합니다.")]
+        [Min(0f)] [SerializeField] private float threatLeadBonus = 10f;
+
+        [Tooltip("도발과 함께 시전자에게 부여할 위협 생성 배율")]
+        [Min(0f)] [SerializeField] private float selfThreatMultiplier = 1.5f;
+
+        [Tooltip("위협 생성 배율 지속 시간")]
+        [Min(0f)] [SerializeField] private float selfThreatMultiplierDuration = 5f;
+
+        private readonly Collider[] overlapBuffer = new Collider[16];
+        private readonly HashSet<EnemyBase> processedEnemies = new HashSet<EnemyBase>();
+
+        protected override void ApplyEffect(GameObject caster, GameObject target)
+        {
+            if (caster == null)
+                return;
+
+            ApplySelfThreatMultiplier(caster);
+
+            processedEnemies.Clear();
+            int hitCount = Physics.OverlapSphereNonAlloc(caster.transform.position, areaRadius, overlapBuffer, targetLayers);
+            for (int i = 0; i < hitCount; i++)
+            {
+                Collider hit = overlapBuffer[i];
+                if (hit == null)
+                    continue;
+
+                EnemyBase enemy = hit.GetComponentInParent<EnemyBase>();
+                if (enemy == null || processedEnemies.Contains(enemy))
+                    continue;
+
+                if (!IsValidTarget(caster, enemy.gameObject))
+                    continue;
+
+                processedEnemies.Add(enemy);
+                ApplyTauntThreat(enemy, caster);
+            }
+        }
+
+        private void ApplySelfThreatMultiplier(GameObject caster)
+        {
+            if (selfThreatMultiplier <= 0f || selfThreatMultiplierDuration <= 0f)
+                return;
+
+            ThreatController threatController = caster.GetComponent<ThreatController>();
+            if (threatController == null)
+            {
+                threatController = caster.AddComponent<ThreatController>();
+            }
+
+            threatController.ApplyThreatMultiplier(selfThreatMultiplier, selfThreatMultiplierDuration);
+        }
+
+        private void ApplyTauntThreat(EnemyBase enemy, GameObject caster)
+        {
+            if (enemy == null || caster == null || !enemy.UseThreatSystem)
+                return;
+
+            GameObject highestThreatTarget = enemy.GetHighestThreatTarget();
+            float highestThreat = highestThreatTarget != null ? enemy.GetThreat(highestThreatTarget) : 0f;
+            float currentCasterThreat = enemy.GetThreat(caster);
+
+            float desiredThreat = Mathf.Max(currentCasterThreat + flatThreatAmount, highestThreat + threatLeadBonus + flatThreatAmount);
+            enemy.SetThreat(caster, desiredThreat);
+        }
+    }
+}

Assets/_Game/Scripts/Skills/Effects/TauntEffect.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: bd72562b167fced4191f12bd3a86d341

Assets/_Game/Scripts/Skills/Effects/ThreatModifierEffect.cs

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+using UnityEngine;
+
+using Colosseum.Combat;
+
+namespace Colosseum.Skills.Effects
+{
+    /// <summary>
+    /// 시전자 또는 대상의 위협 생성 배율을 일정 시간 증가시킵니다.
+    /// </summary>
+    [CreateAssetMenu(fileName = "ThreatModifierEffect", menuName = "Colosseum/Skills/Effects/Threat Modifier")]
+    public class ThreatModifierEffect : SkillEffect
+    {
+        [Header("Threat Modifier")]
+        [Tooltip("적용할 위협 생성 배율")]
+        [Min(0f)] [SerializeField] private float threatMultiplier = 1.5f;
+
+        [Tooltip("배율 지속 시간")]
+        [Min(0f)] [SerializeField] private float duration = 5f;
+
+        protected override void ApplyEffect(GameObject caster, GameObject target)
+        {
+            if (target == null || threatMultiplier <= 0f || duration <= 0f)
+                return;
+
+            ThreatController threatController = target.GetComponent<ThreatController>();
+            if (threatController == null)
+            {
+                threatController = target.AddComponent<ThreatController>();
+            }
+
+            threatController.ApplyThreatMultiplier(threatMultiplier, duration);
+        }
+    }
+}

Assets/_Game/Scripts/Skills/Effects/ThreatModifierEffect.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: ae36db0b9307b554bae67c8825a36b99