补全 CombatNode 逻辑 + 重构 EnemyManager

- 添加了关卡内的难度系数与掉落
    - 难度系数：每循环一轮波次敌人血量翻倍
    - 道具掉落：按照掉落概率曲线根据波次计算当前爆率，并从新增的道具池里选择道具
    - `CombatResourceManager`：统一维护关卡内资源状态（硬币/金币/道具掉落）
- 重构 `EnemyManager`：
    - `EnemyManager`：编排子服务，不承载具体业务细节
    - `EnemySpawnDirector`：管理刷怪时序
    - `SpawnerResolver`：管理出生点与路径
    - `EnemyLifecycleTracker`：追踪敌人生命周期
    - `EnemyConfigService`：管理敌人配置与倍率

Assets/GameMain/Scripts/UI/Combat/Context/CombatInfoFormContext.cs

@@ -6,6 +6,7 @@ namespace GeometryTD.UI
         public string LevelPhaseText;
         public string CoinText;
         public string BaseHpText;
+        public string EnemyHpRateText;
         public bool CanPause;
         public bool CanEnd;
     }

Assets/GameMain/Scripts/UI/Combat/Controller/CombatInfoFormController.cs

@@ -23,6 +23,7 @@ namespace GeometryTD.UI
             GameEntry.Event.Subscribe(CombatProcessEventArgs.EventId, OnCombatProcessChanged);
             GameEntry.Event.Subscribe(CombatCoinChangedEventArgs.EventId, OnCombatCoinChanged);
             GameEntry.Event.Subscribe(CombatBaseHpChangedEventArgs.EventId, OnCombatBaseHpChanged);
+            GameEntry.Event.Subscribe(CombatEnemyHpRateChangedEventArgs.EventId, OnCombatEnemyHpRateChanged);
         }
 
         protected override void UnsubscribeCustomEvents()
@@ -32,6 +33,7 @@ namespace GeometryTD.UI
             GameEntry.Event.Unsubscribe(CombatProcessEventArgs.EventId, OnCombatProcessChanged);
             GameEntry.Event.Unsubscribe(CombatCoinChangedEventArgs.EventId, OnCombatCoinChanged);
             GameEntry.Event.Unsubscribe(CombatBaseHpChangedEventArgs.EventId, OnCombatBaseHpChanged);
+            GameEntry.Event.Unsubscribe(CombatEnemyHpRateChangedEventArgs.EventId, OnCombatEnemyHpRateChanged);
         }
 
         public int? OpenUI(CombatInfoFormRawData rawData)
@@ -92,6 +94,7 @@ namespace GeometryTD.UI
                 LevelPhaseText = BuildPhaseText(rawData.CurrentPhaseIndex, rawData.TotalPhaseCount),
                 CoinText = BuildCoinText(rawData.Coin),
                 BaseHpText = BuildBaseHpText(rawData.BaseHp, rawData.BaseHpMax),
+                EnemyHpRateText = BuildEnemyHpRateText(rawData.EnemyHpRateMultiplier),
                 CanPause = rawData.CanPause,
                 CanEnd = rawData.CanEnd
             };
@@ -140,6 +143,12 @@ namespace GeometryTD.UI
             return $"\u57FA\u5730\uFF1A{percent}%";
         }
 
+        private static string BuildEnemyHpRateText(int enemyHpRateMultiplier)
+        {
+            int resolvedMultiplier = enemyHpRateMultiplier > 0 ? enemyHpRateMultiplier : 1;
+            return $"\u96BE\u5EA6\uFF1A{resolvedMultiplier}x";
+        }
+
         private void OnCombatPauseButtonClicked(object sender, GameEventArgs e)
         {
             if (!(sender is CombatInfoForm) || !(e is CombatPauseEventArgs))
@@ -197,6 +206,16 @@ namespace GeometryTD.UI
             RefreshFromUseCase();
         }
 
+        private void OnCombatEnemyHpRateChanged(object sender, GameEventArgs e)
+        {
+            if (!(e is CombatEnemyHpRateChangedEventArgs))
+            {
+                return;
+            }
+
+            RefreshFromUseCase();
+        }
+
         private void RefreshFromUseCase()
         {
             if (_useCase == null)

Assets/GameMain/Scripts/UI/Combat/RawData/CombatInfoFormRawData.cs

@@ -11,6 +11,7 @@ namespace GeometryTD.UI
         public int Coin;
         public int BaseHp;
         public int BaseHpMax;
+        public int EnemyHpRateMultiplier;
         public bool CanPause;
         public bool CanEnd;
     }

Assets/GameMain/Scripts/UI/Combat/UseCase/CombatInfoFormUseCase.cs

@@ -35,6 +35,9 @@ namespace GeometryTD.UI
             LevelThemeType themeType = level != null ? level.LevelThemeType : GameEntry.CombatNode.CurrentThemeType;
             int levelId = level != null ? level.Id : 0;
             int baseHpMax = level != null ? level.BaseHp : 0;
+            int enemyHpRateMultiplier = ResolveEnemyHpRateMultiplier(
+                GameEntry.CombatNode.CurrentPhaseIndex,
+                GameEntry.CombatNode.CurrentLevelPhaseCount);
 
             return new CombatInfoFormRawData
             {
@@ -45,9 +48,26 @@ namespace GeometryTD.UI
                 Coin = GameEntry.CombatNode.CurrentCoin,
                 BaseHp = GameEntry.CombatNode.CurrentBaseHp,
                 BaseHpMax = baseHpMax,
+                EnemyHpRateMultiplier = enemyHpRateMultiplier,
                 CanPause = true,
                 CanEnd = GameEntry.CombatNode.CanEndCombat
             };
         }
+
+        private static int ResolveEnemyHpRateMultiplier(int currentPhaseIndex, int totalPhaseCount)
+        {
+            if (currentPhaseIndex <= 0 || totalPhaseCount <= 0)
+            {
+                return 1;
+            }
+
+            int completedLoopCount = UnityEngine.Mathf.Max(0, (currentPhaseIndex - 1) / totalPhaseCount);
+            if (completedLoopCount >= 30)
+            {
+                return int.MaxValue;
+            }
+
+            return 1 << completedLoopCount;
+        }
     }
 }

Assets/GameMain/Scripts/UI/Combat/View/CombatInfoForm.cs

@@ -15,6 +15,8 @@ namespace GeometryTD.UI
         
         [SerializeField] private TMP_Text _baseHpText;
 
+        [SerializeField] private TMP_Text _enemyHpRateText;
+
         [SerializeField] private CommonButton _pauseButton;
 
         [SerializeField] private CommonButton _endButton;
@@ -44,6 +46,11 @@ namespace GeometryTD.UI
             {
                 _baseHpText.text = context?.BaseHpText ?? string.Empty;
             }
+            
+            if (_enemyHpRateText != null)
+            {
+                _enemyHpRateText.text = context?.EnemyHpRateText ?? string.Empty;
+            }
 
             if (_pauseButton != null)
             {
@@ -112,6 +119,11 @@ namespace GeometryTD.UI
             {
                 _baseHpText.text = string.Empty;
             }
+            
+            if (_enemyHpRateText != null)
+            {
+                _enemyHpRateText.text = string.Empty;
+            }
 
             base.OnClose(isShutdown, userData);
         }