more changes, i guess

Assets/_Project/Scripts/Combat/TowerCombat.cs

@@ -1,10 +1,13 @@
 // Assets/_Project/Scripts/Combat/TowerCombat.cs
+
+using System;
 using System.Collections.Generic;
-using Unity.Netcode;
-using UnityEngine;
 using TD.Core;
 using TD.Gameplay;
 using TD.Towers;
+using Unity.Netcode;
+using UnityEngine;
+using Object = UnityEngine.Object;
 
 namespace TD.Combat
 {
@@ -75,17 +78,17 @@ namespace TD.Combat
         /// fired in <see cref="OnNetworkSpawn"/> for late-joining clients so visual
         /// consumers always initialise from the correct state.
         /// </summary>
-        public event System.Action<NetworkObjectReference> OnTargetAcquired;
+        public event Action<NetworkObjectReference> OnTargetAcquired;
 
         /// <summary>Fired locally on ALL peers when the tower loses its target.</summary>
-        public event System.Action OnTargetLost;
+        public event Action OnTargetLost;
 
         /// <summary>
         /// Fired locally on ALL peers each time the tower attacks.
         /// Argument is the world-space position of the primary target at the moment
         /// of fire — use it to aim muzzle flash, spawn a tracer, etc.
         /// </summary>
-        public event System.Action<Vector3> OnFire;
+        public event Action<Vector3> OnFire;
 
         // ----- NGO lifecycle -----------------------------------------------
 
@@ -143,7 +146,7 @@ namespace TD.Combat
             if (currentTarget == null) return;
 
             bool dead        = currentTarget.IsDead;
-            bool destroyed   = (currentTarget as UnityEngine.Object) == null;
+            bool destroyed   = (currentTarget as Object) == null;
             bool outOfRange  = Vector3.Distance(
                                    transform.position,
                                    currentTarget.transform.position) > def.Range;