feat: 투사체 발사 스킬 구현

- SkillProjectile: 서버 권위 이동/충돌, caster 자식 콜라이더 충돌 무시 추가
- SpawnEffect: hitEffect 필드 추가 (투사체 명중 시 적용할 효과 분리)
- SkillEffect: Team 컴포넌트 없는 환경 오브젝트 타겟 제외 처리
- Prefab_Skill_ProjectileBasic 프리팹 생성 (NetworkObject + NetworkTransform + Rigidbody + SphereCollider)
- 투사체 스킬 에셋 추가 (SkillData, SpawnEffect, DamageEffect)
- Anim_Common_찌르기 애니메이션 이벤트 추가 (OnEffect @ 0.867s, OnSkillEnd @ 1.3s)
- DefaultNetworkPrefabs에 Prefab_Skill_ProjectileBasic 등록

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Assets/DefaultNetworkPrefabs.asset

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Assets/_Game/Prefabs/Player/Prefab_Player_Default.prefab

@@ -295,7 +295,8 @@ MonoBehaviour:
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   baseSkillClip: {fileID: -7717634560727564301, guid: 0f6fd9302e489b94d96774e2713b1317, type: 3}
-  registeredClips: []
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@@ -314,7 +315,7 @@ MonoBehaviour:
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Assets/_Game/Prefabs/Skills/Prefab_Skill_ProjectileBasic.prefab.meta

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

@@ -1,4 +1,5 @@
 using UnityEngine;
+using Unity.Netcode;
 
 namespace Colosseum.Skills.Effects
 {
@@ -15,26 +16,42 @@ namespace Colosseum.Skills.Effects
         [SerializeField] private bool parentToCaster = false;
         [Min(0f)] [SerializeField] private float autoDestroyTime = 3f;
 
+        [Header("Hit Settings")]
+        [Tooltip("투사체가 대상에 명중했을 때 적용할 효과. 미설정 시 명중 효과 없음.")]
+        [SerializeField] private SkillEffect hitEffect;
+
         protected override void ApplyEffect(GameObject caster, GameObject target)
         {
             if (prefab == null || caster == null) return;
 
             Vector3 spawnPos = GetSpawnPosition(caster, target) + spawnOffset;
             Quaternion spawnRot = GetSpawnRotation(caster, target);
-            Transform parent = parentToCaster ? caster.transform : null;
 
-            GameObject instance = Object.Instantiate(prefab, spawnPos, spawnRot, parent);
+            var networkObject = prefab.GetComponent<NetworkObject>();
-
+            if (networkObject != null)
-            // SkillProjectile 컴포넌트가 있으면 초기화
-            var projectile = instance.GetComponent<SkillProjectile>();
-            if (projectile != null)
             {
-                projectile.Initialize(caster, this);
+                // 네트워크 오브젝트: 서버에서 스폰 후 전파
+                // (OnEffect 가드에 의해 이미 서버에서만 호출됨)
+                GameObject instance = Object.Instantiate(prefab, spawnPos, spawnRot);
+                var spawnedNet = instance.GetComponent<NetworkObject>();
+                spawnedNet.Spawn(destroyWithScene: true);
+
+                var projectile = instance.GetComponent<SkillProjectile>();
+                if (projectile != null)
+                    projectile.Initialize(caster, hitEffect);
             }
-
+            else
-            if (autoDestroyTime > 0f)
             {
-                Object.Destroy(instance, autoDestroyTime);
+                // 로컬 오브젝트 (파티클 등): 기존 방식 유지
+                Transform parent = parentToCaster ? caster.transform : null;
+                GameObject instance = Object.Instantiate(prefab, spawnPos, spawnRot, parent);
+
+                var projectile = instance.GetComponent<SkillProjectile>();
+                if (projectile != null)
+                    projectile.Initialize(caster, hitEffect);
+
+                if (autoDestroyTime > 0f)
+                    Object.Destroy(instance, autoDestroyTime);
             }
         }
 

Assets/_Game/Scripts/Skills/SkillEffect.cs

@@ -93,6 +93,9 @@ namespace Colosseum.Skills
 
         private bool IsCorrectTeam(GameObject caster, GameObject target)
         {
+            // Team 컴포넌트가 없는 오브젝트(환경, 바닥, 벽 등)는 타겟 제외
+            if (target.GetComponent<Team>() == null) return false;
+
             bool isSameTeam = Team.IsSameTeam(caster, target);
 
             return targetTeam switch

Assets/_Game/Scripts/Skills/SkillProjectile.cs

@@ -1,12 +1,14 @@
 using UnityEngine;
+using Unity.Netcode;
 
 namespace Colosseum.Skills
 {
     /// <summary>
     /// 스킬 투사체. 충돌 시 연결된 효과를 적용합니다.
+    /// 서버에서만 이동/충돌을 처리하며, NetworkTransform으로 위치를 동기화합니다.
     /// </summary>
     [RequireComponent(typeof(Rigidbody))]
-    public class SkillProjectile : MonoBehaviour
+    public class SkillProjectile : NetworkBehaviour
     {
         [Header("이동 설정")]
         [Min(0f)] [SerializeField] private float speed = 15f;
@@ -41,29 +43,39 @@ namespace Colosseum.Skills
                 rb.useGravity = false;
                 rb.collisionDetectionMode = CollisionDetectionMode.ContinuousDynamic;
             }
+
+            // caster 및 자식 콜라이더와의 충돌 무시
+            var myColliders = GetComponents<Collider>();
+            foreach (var cc in caster.GetComponentsInChildren<Collider>())
+                foreach (var mc in myColliders)
+                    Physics.IgnoreCollision(mc, cc);
         }
 
         private void Start()
         {
-            Destroy(gameObject, lifetime);
+            // 서버에서만 수명 관리
+            if (IsServer)
+                Invoke(nameof(ServerDespawn), lifetime);
         }
 
         private void FixedUpdate()
         {
-            if (!initialized || rb == null) return;
+            // 서버에서만 이동 처리
+            if (!IsServer || !initialized || rb == null) return;
             rb.linearVelocity = transform.forward * speed;
         }
 
         private void OnTriggerEnter(Collider other)
         {
-            if (!initialized || sourceEffect == null) return;
+            // 서버에서만 충돌 처리
+            if (!IsServer || !initialized || sourceEffect == null) return;
             if (other.gameObject == caster) return;
 
             // 유효한 타겟인지 확인
             if (!sourceEffect.IsValidTarget(caster, other.gameObject))
                 return;
 
-            // 충돌 이펙트
+            // 충돌 이펙트 (서버에서 스폰 → 클라이언트에도 표시되려면 NetworkObject여야 함)
             if (hitEffect != null)
             {
                 var effect = Instantiate(hitEffect, transform.position, transform.rotation);
@@ -77,10 +89,16 @@ namespace Colosseum.Skills
 
             if (!penetrate || penetrationCount >= maxPenetration)
             {
-                Destroy(gameObject);
+                ServerDespawn();
             }
         }
 
+        private void ServerDespawn()
+        {
+            if (!IsServer || !IsSpawned) return;
+            NetworkObject.Despawn(true);
+        }
+
         public void SetDirection(Vector3 direction)
         {
             transform.rotation = Quaternion.LookRotation(direction.normalized);