[Network] 스킬 시스템 네트워크 동기화 및 로그 정리

- 스킬 실행 RequestSkillExecutionRpc (Client -> Server)
- 스킬 전파 BroadcastSkillExecutionRpc (Server -> All Clients)
- 서버에서 마나/쿨타임 검증
- NormalizeTime 디버그 로그 제거

Assets/Scenes/Test.unity

@@ -261,6 +261,18 @@ PrefabInstance:
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       propertyPath: m_SizeDelta.y
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Assets/Scripts/Player/PlayerSkillInput.cs

@@ -97,26 +97,73 @@ namespace Colosseum.Player
                 return;
             }
 
+            // 로컬 체크 (빠른 피드백용)
+            if (skillController.IsExecutingSkill)
+            {
+                Debug.Log($"Already executing skill");
+                return;
+            }
+
+            if (skillController.IsOnCooldown(skill))
+            {
+                Debug.Log($"Skill {skill.SkillName} is on cooldown");
+                return;
+            }
+
             // 마나 비용 체크
             if (networkController != null && networkController.Mana < skill.ManaCost)
             {
-                Debug.Log($"Not enough mana for skill: {skill.SkillName} (Required: {skill.ManaCost}, Current: {networkController.Mana})");
+                Debug.Log($"Not enough mana for skill: {skill.SkillName}");
                 return;
             }
 
-            // 논타겟: 타겟 없이 스킬 시전
-            bool success = skillController.ExecuteSkill(skill);
-            if (!success)
-            {
-                Debug.Log($"Cannot execute skill: {skill.SkillName}");
-                return;
-            }
+            // 서버에 스킬 실행 요청
+            RequestSkillExecutionRpc(slotIndex);
+        }
 
-            // 스킬 성공 시 마나 소모
+        /// <summary>
+        /// 서버에 스킬 실행 요청
+        /// </summary>
+        [Rpc(SendTo.Server)]
+        private void RequestSkillExecutionRpc(int slotIndex)
+        {
+            if (slotIndex < 0 || slotIndex >= skillSlots.Length)
+                return;
+
+            SkillData skill = skillSlots[slotIndex];
+            if (skill == null) return;
+
+            // 서버에서 다시 검증
+            if (skillController.IsExecutingSkill || skillController.IsOnCooldown(skill))
+                return;
+
+            if (networkController != null && networkController.Mana < skill.ManaCost)
+                return;
+
+            // 마나 소모
             if (networkController != null && skill.ManaCost > 0)
             {
                 networkController.UseManaRpc(skill.ManaCost);
             }
+
+            // 모든 클라이언트에 스킬 실행 전파
+            BroadcastSkillExecutionRpc(slotIndex);
+        }
+
+        /// <summary>
+        /// 모든 클라이언트에 스킬 실행 전파
+        /// </summary>
+        [Rpc(SendTo.ClientsAndHost)]
+        private void BroadcastSkillExecutionRpc(int slotIndex)
+        {
+            if (slotIndex < 0 || slotIndex >= skillSlots.Length)
+                return;
+
+            SkillData skill = skillSlots[slotIndex];
+            if (skill == null) return;
+
+            // 모든 클라이언트에서 스킬 실행 (애니메이션 포함)
+            skillController.ExecuteSkill(skill);
         }
 
         /// <summary>

Assets/Scripts/Skills/SkillController.cs

@@ -61,11 +61,6 @@ namespace Colosseum.Skills
 
             var stateInfo = animator.GetCurrentAnimatorStateInfo(0);
 
-            if (debugMode)
-            {
-                Debug.Log($"[Skill] State: {stateInfo.shortNameHash}, NormalizedTime: {stateInfo.normalizedTime:F2}, IsSkill: {stateInfo.IsName(SKILL_STATE_NAME)}");
-            }
-
             // EndAnimation 종료 감지
             if (waitingForEndAnimation)
             {

Assets/UserChoices.choices

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+      Answers:
+      - Fast
+    - QuestionId: Cheating
+      Answers:
+      - CheatingImportant
+    - QuestionId: CostSensitivity
+      Answers:
+      - BestExperience
+    - QuestionId: NetcodeArchitecture
+      Answers:
+      - ClientServer
+    - QuestionId: PlayerCount
+      Answers:
+      - 4
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+  SelectedSolutions:
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+    SelectedNetcodeSolution: 1

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