feat: 플레이어 다운 및 넉백 피격 반응 추가

- HitReactionController로 다운과 넉백 전용 로직을 분리
- 다운 시작, 루프, 회복 애니메이션과 DownEffect를 연결
- 행동 상태와 스킬 취소가 피격 반응과 연동되도록 정리
- 자동 검증 러너에 다운 및 넉백 검증을 추가

Assets/_Game/Scripts/Abnormalities/AbnormalityManager.cs

@@ -4,6 +4,7 @@ using UnityEngine;
 using Unity.Netcode;
 using Colosseum.Stats;
 using Colosseum.Player;
+using Colosseum.Skills;
 
 namespace Colosseum.Abnormalities
 {
@@ -20,6 +21,9 @@ namespace Colosseum.Abnormalities
         [Tooltip("PlayerNetworkController 컴포넌트 (HP/MP 관리용)")]
         [SerializeField] private PlayerNetworkController networkController;
 
+        [Tooltip("스킬 실행 관리자 (강제 취소 처리용)")]
+        [SerializeField] private SkillController skillController;
+
         // 활성화된 이상 상태 목록
         private readonly List<ActiveAbnormality> activeAbnormalities = new List<ActiveAbnormality>();
 
@@ -108,6 +112,9 @@ namespace Colosseum.Abnormalities
             if (networkController == null)
                 networkController = GetComponent<PlayerNetworkController>();
 
+            if (skillController == null)
+                skillController = GetComponent<SkillController>();
+
             syncedAbnormalities = new NetworkList<AbnormalitySyncData>();
         }
 
@@ -414,9 +421,12 @@ namespace Colosseum.Abnormalities
 
         private void ApplyControlEffect(AbnormalityData data)
         {
+            bool enteredStun = false;
+
             switch (data.controlType)
             {
                 case ControlType.Stun:
+                    enteredStun = stunCount == 0;
                     stunCount++;
                     break;
 
@@ -434,6 +444,11 @@ namespace Colosseum.Abnormalities
             }
 
             SyncControlEffects();
+
+            if (enteredStun)
+            {
+                TryCancelCurrentSkill(SkillCancelReason.Stun, data.abnormalityName);
+            }
         }
 
         private void RemoveControlEffect(AbnormalityData data)
@@ -584,6 +599,17 @@ namespace Colosseum.Abnormalities
             Debug.Log($"[Abnormality] Cleared all abnormalities on death: {gameObject.name}");
         }
 
+        private void TryCancelCurrentSkill(SkillCancelReason reason, string sourceName)
+        {
+            if (!IsServer || skillController == null || !skillController.IsPlayingAnimation)
+                return;
+
+            if (skillController.CancelSkill(reason))
+            {
+                Debug.Log($"[Abnormality] Cancelled skill because '{sourceName}' applied to {gameObject.name}");
+            }
+        }
+
         private AbnormalityData FindAbnormalityDataById(int instanceId)
         {
             var allData = Resources.FindObjectsOfTypeAll<AbnormalityData>();