클라이언트에서 캠프 처치 없이도 ResourcePickup이 보이는 문제 수정

Assets/Scripts/ResourcePickup.cs

@@ -28,7 +28,74 @@ namespace Northbound
         public GameObject pickupEffectPrefab;
         public Transform effectSpawnPoint;
 
+        // 가시성 동기화 (기본적으로 숨김)
+        private NetworkVariable<bool> _isVisible = new NetworkVariable<bool>(
+            false,
+            NetworkVariableReadPermission.Everyone,
+            NetworkVariableWritePermission.Server
+        );
+
         private bool _isCollected = false;
+        private Renderer[] _renderers;
+        private Collider[] _colliders;
+
+        public override void OnNetworkSpawn()
+        {
+            base.OnNetworkSpawn();
+
+            // 렌더러와 콜라이더 캐시
+            _renderers = GetComponentsInChildren<Renderer>();
+            _colliders = GetComponentsInChildren<Collider>();
+
+            // 초기 가시성 적용
+            UpdateVisibility(_isVisible.Value);
+
+            // 가시성 변경 이벤트 구독
+            _isVisible.OnValueChanged += OnVisibilityChanged;
+        }
+
+        public override void OnNetworkDespawn()
+        {
+            _isVisible.OnValueChanged -= OnVisibilityChanged;
+            base.OnNetworkDespawn();
+        }
+
+        private void OnVisibilityChanged(bool previousValue, bool newValue)
+        {
+            UpdateVisibility(newValue);
+        }
+
+        private void UpdateVisibility(bool visible)
+        {
+            if (_renderers != null)
+            {
+                foreach (var renderer in _renderers)
+                {
+                    if (renderer != null)
+                        renderer.enabled = visible;
+                }
+            }
+
+            if (_colliders != null)
+            {
+                foreach (var collider in _colliders)
+                {
+                    if (collider != null)
+                        collider.enabled = visible;
+                }
+            }
+        }
+
+        /// <summary>
+        /// 가시성 설정 (서버만 호출 가능)
+        /// </summary>
+        public void SetVisible(bool visible)
+        {
+            if (IsServer)
+            {
+                _isVisible.Value = visible;
+            }
+        }
 
         public bool CanInteract(ulong playerId)
         {