推进计时器逻辑的集中管理

- 将敌人的攻击计时任务放到基类中进行创建
- 将 EnemySpawnScheduler 敌人生成调度器的刷怪计时任务迁移到 TimerComponent

Assets/GameMain/Scripts/Runtime/Entity/EntityLogic/Enemy/MeleeEnemy.cs

@@ -1,7 +1,6 @@
 using SepCore.Components;
 using SepCore.CustomUtility;
 using SepCore.Definition;
-using SepCore.Timer;
 using UnityEngine;
 using UnityGameFramework.Runtime;
 
@@ -24,8 +23,6 @@ namespace SepCore.Entity
         private int _attackDamage = 1;
 
         private float _sqrAttackRange;
-        private TimerHandle _attackTimerHandle;
-        private bool _canAttack;
 
         private AttackStateType _attackState = AttackStateType.Idle;
 
@@ -71,8 +68,7 @@ namespace SepCore.Entity
                 _attackDamage = Mathf.Max(1, _meleeEnemyData.AttackDamage);
                 _sqrAttackRange = _attackRange * _attackRange;
 
-                _canAttack = false;
-                _attackTimerHandle = GameEntry.Timer.ScheduleOnce(_attackCooldown, () => _canAttack = true, this);
+                StartAttackCooldown(_attackCooldown);
                 _attackState = AttackStateType.Idle;
                 _targetableTarget = null;
 
@@ -96,8 +92,7 @@ namespace SepCore.Entity
             _movementComponent.OnReset();
             _healthComponent.OnReset();
             _targetableTarget = null;
-            GameEntry.Timer.Cancel(_attackTimerHandle);
-            _attackTimerHandle = TimerHandle.Invalid;
+            CancelAttackCooldown();
             _attackState = AttackStateType.Idle;
 
             base.OnHide(isShutdown, userData);
@@ -155,8 +150,7 @@ namespace SepCore.Entity
 
                     if (_canAttack)
                     {
-                        _canAttack = false;
-                        _attackTimerHandle = GameEntry.Timer.ScheduleOnce(_attackCooldown, () => _canAttack = true, this);
+                        ResetAttackCooldown(_attackCooldown);
                         TransitionTo(AttackStateType.Attack);
                     }