(client) chore:Clean code

Client/Assets/Scripts/Entity/Bullet.cs

@@ -1,7 +1,5 @@
-using System;
 using Base;
 using Data;
-using Prefab;
 using UnityEngine;
 
 namespace Entity
@@ -10,7 +8,7 @@ namespace Entity
     {
         public Entity bulletSource;
         public float lifeTime = 10;
-        
+
         public override void SetTarget(Vector3 pos)
         {
             base.SetTarget(pos);
@@ -20,7 +18,7 @@ namespace Entity
         protected override void AutoBehave()
         {
             TryMove();
-            lifeTime-=Time.deltaTime;
+            lifeTime -= Time.deltaTime;
             if (lifeTime <= 0)
             {
                 Kill();
@@ -55,7 +53,7 @@ namespace Entity
 
             // 计算当前向上方向与目标方向之间的角度
             var angle = Mathf.Atan2(targetDirection.y, targetDirection.x) * Mathf.Rad2Deg;
-            
+
 
             // 应用旋转
             transform.rotation = Quaternion.Euler(0f, 0f, angle);