Add final evaluation report for Minimap system after all fixes and improvements

- Summarized the evolution of scores across five review rounds
- Detailed the status of each evaluation dimension post-fixes
- Highlighted remaining issues and recommended future work for further enhancements
- Compared current system against industry benchmarks

Assets/_Game/Scripts/World/Map/MapPin.cs

@@ -1,3 +1,5 @@
+// NOTE: 此文件包含 MapPinManager 类，但文件名为 MapPin.cs（历史遗留，Unity .meta 绑定限制不可安全重命名）。
+// 如需搜索，请搜索 "MapPinManager" 类名，而非文件名。
 using System.Collections.Generic;
 using UnityEngine;
 using BaseGames.Core;
@@ -5,28 +7,55 @@ using BaseGames.Core.Save;
 
 namespace BaseGames.World.Map
 {
+    /// <summary>标记类型与显示精灵的映射表项（从 MapPanel 移入，与数据同文件管理）。</summary>
+    [System.Serializable]
+    public class PinSpriteEntry
+    {
+        public PinType PinType;
+        public Sprite  Sprite;
+    }
+
     /// <summary>
     /// 地图自定义标记管理器（架构 15_MapShopModule §1.5）。
-    /// 实现 ISaveable，通过 SaveManager 持久化玩家地图标记。
+    /// 实现 <see cref="ISaveable"/> 和 <see cref="IPinService"/>，通过 ServiceLocator 对外暴露。
+    /// <para>
+    /// <see cref="PinsVersion"/> 每次 Pin 集合变化时自增，外部消费方（MapPanel）
+    /// 可通过版本号判断是否需要重绘，避免无效 Instantiate。
+    /// </para>
     /// MapPin/PinType 数据类定义在 SaveData.cs（BaseGames.Core.Save）中，避免循环依赖。
     /// </summary>
-    public class MapPinManager : MonoBehaviour, ISaveable
+    public class MapPinManager : MonoBehaviour, ISaveable, IPinService
     {
         private List<MapPin> _pins = new();
 
-        public IReadOnlyList<MapPin> Pins => _pins;
+        public IReadOnlyList<MapPin> Pins       => _pins;
 
-        private void OnEnable()  => ServiceLocator.GetOrDefault<ISaveableRegistry>()?.Register(this);
-        private void OnDisable() => ServiceLocator.GetOrDefault<ISaveableRegistry>()?.Unregister(this);
+        /// <summary>每次 Pin 集合发生变化时自增；外部消费方通过此版本号实现脏检查。</summary>
+        public int PinsVersion { get; private set; }
+
+        private void OnEnable()
+        {
+            ServiceLocator.GetOrDefault<ISaveableRegistry>()?.Register(this);
+            ServiceLocator.Register<IPinService>(this);
+        }
+
+        private void OnDisable()
+        {
+            ServiceLocator.GetOrDefault<ISaveableRegistry>()?.Unregister(this);
+            ServiceLocator.Unregister<IPinService>(this);
+        }
 
         // ── 公共 API ──────────────────────────────────────────────────────────
 
         public void AddPin(MapPin pin)
         {
-            if (pin != null) _pins.Add(pin);
+            if (pin != null) { _pins.Add(pin); PinsVersion++; }
         }
 
-        public void RemovePin(MapPin pin) => _pins.Remove(pin);
+        public void RemovePin(MapPin pin)
+        {
+            if (_pins.Remove(pin)) PinsVersion++;
+        }
 
         /// <summary>便捷方法：用枚举类型创建并添加标记。</summary>
         public MapPin CreatePin(string roomId, float normX, float normY,
@@ -47,6 +76,11 @@ namespace BaseGames.World.Map
         // ── ISaveable ─────────────────────────────────────────────────────────
 
         public void OnSave(SaveData data) => data.Map.Pins = _pins;
-        public void OnLoad(SaveData data) => _pins = data.Map.Pins ?? new List<MapPin>();
+
+        public void OnLoad(SaveData data)
+        {
+            _pins = data.Map.Pins ?? new List<MapPin>();
+            PinsVersion++;  // 加载存档后通知消费方重绘
+        }
     }
 }