refactor 3:

- EnemyManager.cs 不再计算 droppedCoin / droppedGold / baseDamage，只在敌人隐藏完成后区分“击杀”还是“非击杀到家”，并把 DREnemy 上报给 CombatScheduler。
- CombatScheduler.cs 新增统一入口：
  - OnEnemyDefeated(DREnemy enemy)：通过 EnemyDropResolver 解析掉落，再调用 CombatInRunResourceManager 入账，并按结果决定是否触发局外掉落判定。
  - OnEnemyReachedBase(DREnemy enemy)：从 enemy.BaseDamage 解析伤害，再统一扣减基地血量。

Assets/GameMain/Scripts/CustomComponent/CombatNode/CombatScheduler/CombatScheduler.cs

@@ -26,6 +26,7 @@ namespace GeometryTD.CustomComponent
         private readonly CombatLoadSession _loadSession = new();
         private readonly CombatEventBridge _eventBridge = new();
         private readonly CombatInRunResourceManager _combatInRunResourceManager = new();
+        private readonly EnemyDropResolver _enemyDropResolver = new();
 
         private EntityComponent _entity;
         private DRLevel _currentLevel;
@@ -178,14 +179,14 @@ namespace GeometryTD.CustomComponent
             return _phaseLoopRuntime.TryRequestEndCombat();
         }
 
-        public void OnEnemyReachedBase(int baseDamage)
+        public void OnEnemyReachedBase(DREnemy enemy)
         {
             if (!IsRunning)
             {
                 return;
             }
 
-            int resolvedBaseDamage = Mathf.Max(0, baseDamage);
+            int resolvedBaseDamage = enemy != null ? Mathf.Max(0, enemy.BaseDamage) : 0;
             if (resolvedBaseDamage <= 0)
             {
                 return;
@@ -194,18 +195,28 @@ namespace GeometryTD.CustomComponent
             ApplyBaseDamage(resolvedBaseDamage);
         }
 
-        public void OnEnemyDefeatedRewardResolved(int gainedCoin, int gainedGold)
+        public void OnEnemyDefeated(DREnemy enemy)
         {
-            _combatInRunResourceManager.AddEnemyDefeatedReward(gainedCoin, gainedGold);
-
             if (!IsRunning)
             {
                 return;
             }
 
-            _combatInRunResourceManager.TryRollOutGameItemDrop(
+            EnemyDropResolveContext context = new(
+                enemy,
                 _phaseLoopRuntime.DisplayPhaseIndex,
                 ResolveCurrentThemeType());
+            EnemyDropResolveResult result = _enemyDropResolver.Resolve(context);
+            _combatInRunResourceManager.AddEnemyDefeatedReward(result.Coin, result.Gold);
+
+            if (!result.ShouldRollOutGameItem)
+            {
+                return;
+            }
+
+            _combatInRunResourceManager.TryRollOutGameItemDrop(
+                context.DisplayPhaseIndex,
+                context.ThemeType);
         }
 
         public bool OnCombatFinishReturnRequested()