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/IPinService.cs

@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+using BaseGames.Core.Save;
+
+namespace BaseGames.World.Map
+{
+    /// <summary>
+    /// 玩家地图标记服务接口。
+    /// <para>
+    /// MapPanel 依赖此接口而非具体组件，
+    /// 允许替换实现（云存档、多存档槽等扩展场景）。
+    /// </para>
+    /// 通过 <see cref="BaseGames.Core.ServiceLocator"/> 注册与获取。
+    /// </summary>
+    public interface IPinService
+    {
+        /// <summary>当前所有地图标记（只读视图）。</summary>
+        IReadOnlyList<MapPin> Pins { get; }
+
+        /// <summary>
+        /// 每次增删标记时自增的版本号，供消费方进行脏检查。
+        /// </summary>
+        int PinsVersion { get; }
+
+        /// <summary>创建并添加一个地图标记。</summary>
+        MapPin CreatePin(string roomId, float normX, float normY,
+                         PinType type = PinType.Marker, string note = "");
+
+        /// <summary>移除指定地图标记。</summary>
+        void RemovePin(MapPin pin);
+    }
+}