升级XR插件版本

Packages/MCPForUnity/Editor/Services/IPlatformService.cs

@@ -0,0 +1,20 @@
+namespace MCPForUnity.Editor.Services
+{
+    /// <summary>
+    /// Service for platform detection and platform-specific environment access
+    /// </summary>
+    public interface IPlatformService
+    {
+        /// <summary>
+        /// Checks if the current platform is Windows
+        /// </summary>
+        /// <returns>True if running on Windows</returns>
+        bool IsWindows();
+
+        /// <summary>
+        /// Gets the SystemRoot environment variable (Windows-specific)
+        /// </summary>
+        /// <returns>SystemRoot path, or null if not available</returns>
+        string GetSystemRoot();
+    }
+}