Add independent review reports for Minimap system (Rounds 8, 9, and 26)

- Round 8 report highlights improvements in architecture, editor usability, and data robustness, with a total score of 80/100.
- Round 9 report focuses on editor extension capabilities, identifying issues with room data indexing and layout editing, resulting in a score of 76/100.
- Round 26 report evaluates the system against commercial standards, noting new issues and confirming previous fixes, with a score of 95.8/100.

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

@@ -24,5 +24,12 @@ namespace BaseGames.World.Map
 
         /// <summary>玩家进入新房间时触发（参数为新房间 ID）。</summary>
         event Action<string> OnRoomChanged;
+
+        /// <summary>
+        /// 将世界坐标转换为所属房间 ID 和房间内归一化坐标（0~1）。
+        /// 用于在指定世界坐标处创建地图标记，无需手动计算格子坐标。
+        /// 坐标不在任何已知房间内时返回 false。
+        /// </summary>
+        bool TryGetRoomAtWorldPos(Vector3 worldPos, out string roomId, out Vector2 normalizedPos);
     }
 }