refactor 7:

- 拆分 CombatScheduler，将公用方法与字段拆分为：
    - FlowCoordinator
    - RuntimeContext
- 地图侧现在收口为“MapData 初始快照 + CombatCoinChangedEventArgs 同步 + 独立命令桥接”

Assets/GameMain/Scripts/Entity/EntityLogic/MapEntity.cs

@@ -1,8 +1,6 @@
 using System;
 using System.Collections.Generic;
 using GeometryTD.CustomComponent;
-using GeometryTD.CustomEvent;
-using GameFramework.Event;
 using GeometryTD.Map;
 using GeometryTD.Definition;
 using GeometryTD.Entity.EntityData;
@@ -37,10 +35,8 @@ namespace GeometryTD.Entity
         private CombatSelectInputService _combatSelectInputService;
         private TowerPlacementService _towerPlacementService;
         private TowerSelectionPresenter _towerSelectionPresenter;
-        
         private CombatSelectUseCaseConfigurator _combatSelectUseCaseConfigurator;
-        private int _currentCoin;
-        private bool _isCoinEventSubscribed;
+        private MapCombatRuntimeBridge _combatRuntimeBridge;
 
         public IReadOnlyList<Vector3Int> PathCells => _mapTopologyService != null
             ? _mapTopologyService.PathCells
@@ -110,22 +106,21 @@ namespace GeometryTD.Entity
             InitializeMapTopologyService();
             InitializeTowerPlacementService();
             InitializeTowerSelectionPresenter();
+            InitializeCombatRuntimeBridge();
         }
 
         protected override void OnShow(object userData)
         {
-            base.OnShow(userData);
-
-            _mapData = userData as MapData;
+            MapEntityLoadContext loadContext = ResolveLoadContext(userData);
+            _mapData = loadContext?.InitialMapData;
             if (_mapData == null)
             {
                 Log.Warning("MapData is invalid for map entity '{0}'.", Id);
             }
-            else
-            {
-                _currentCoin = Mathf.Max(0, _mapData.InitialCoin);
-                SubscribeCombatEvents();
-            }
+
+            base.OnShow(_mapData);
+            
+            _combatRuntimeBridge?.Initialize(loadContext, name);
 
             RefreshTiles();
             ConfigureCombatSelectUseCase();
@@ -134,7 +129,7 @@ namespace GeometryTD.Entity
 
         protected override void OnHide(bool isShutdown, object userData)
         {
-            UnsubscribeCombatEvents();
+            _combatRuntimeBridge?.Reset();
             HideCombatSelectForm();
             _towerPlacementService?.HideAndClearAllPlacedTowers();
             ClearSelectionState();
@@ -240,6 +235,14 @@ namespace GeometryTD.Entity
             }
         }
 
+        private void InitializeCombatRuntimeBridge()
+        {
+            if (_combatRuntimeBridge == null)
+            {
+                _combatRuntimeBridge = new MapCombatRuntimeBridge();
+            }
+        }
+
         private void ConfigureCombatSelectUseCase()
         {
             _combatSelectFormUseCase.SetCoinProvider(GetCurrentCoin);
@@ -257,6 +260,21 @@ namespace GeometryTD.Entity
                 _mapData != null ? _mapData.ParticipantTowerSnapshot : null);
         }
 
+        private MapEntityLoadContext ResolveLoadContext(object userData)
+        {
+            if (userData is MapEntityLoadContext loadContext)
+            {
+                return loadContext;
+            }
+
+            if (userData is MapData legacyMapData)
+            {
+                return new MapEntityLoadContext(legacyMapData, null, null);
+            }
+
+            return null;
+        }
+
         private void HandleCombatSelectInput()
         {
             if (!_enableCombatSelectInput || !Input.GetMouseButtonDown(0))
@@ -379,38 +397,6 @@ namespace GeometryTD.Entity
             GameEntry.UIRouter.CloseUI(UIFormType.CombatSelectForm);
         }
 
-        private void SubscribeCombatEvents()
-        {
-            if (_isCoinEventSubscribed)
-            {
-                return;
-            }
-
-            GameEntry.Event.Subscribe(CombatCoinChangedEventArgs.EventId, OnCombatCoinChanged);
-            _isCoinEventSubscribed = true;
-        }
-
-        private void UnsubscribeCombatEvents()
-        {
-            if (!_isCoinEventSubscribed)
-            {
-                return;
-            }
-
-            GameEntry.Event.Unsubscribe(CombatCoinChangedEventArgs.EventId, OnCombatCoinChanged);
-            _isCoinEventSubscribed = false;
-        }
-
-        private void OnCombatCoinChanged(object sender, GameEventArgs e)
-        {
-            if (e is not CombatCoinChangedEventArgs args)
-            {
-                return;
-            }
-
-            _currentCoin = Mathf.Max(0, args.CurrentCoin);
-        }
-
         private int GetCurrentBuildTowerCount()
         {
             if (_mapData == null)
@@ -434,12 +420,12 @@ namespace GeometryTD.Entity
                 return false;
             }
 
-            return _mapData.TryConsumeCoin(requiredCoin);
+            return _combatRuntimeBridge != null && _combatRuntimeBridge.TryConsumeCoin(requiredCoin);
         }
 
         private int GetCurrentCoin()
         {
-            return Mathf.Max(0, _currentCoin);
+            return Mathf.Max(0, _combatRuntimeBridge != null ? _combatRuntimeBridge.CurrentCoin : 0);
         }
 
         private void AddCoin(int coin)
@@ -450,7 +436,7 @@ namespace GeometryTD.Entity
                 return;
             }
 
-            _mapData?.AddCoin(amount);
+            _combatRuntimeBridge?.AddCoin(amount);
         }
     }
 }