升级XR插件版本

Packages/MCPForUnity/Editor/Helpers/McpJobStateStore.cs

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+using System;
+using System.IO;
+using Newtonsoft.Json;
+using UnityEngine;
+
+namespace MCPForUnity.Editor.Helpers
+{
+    /// <summary>
+    /// Utility for persisting tool state across domain reloads. State is stored in
+    /// Library so it stays local to the project and is cleared by Unity as needed.
+    /// </summary>
+    public static class McpJobStateStore
+    {
+        private static string GetStatePath(string toolName)
+        {
+            if (string.IsNullOrEmpty(toolName))
+            {
+                throw new ArgumentException("toolName cannot be null or empty", nameof(toolName));
+            }
+
+            var libraryPath = Path.Combine(Application.dataPath, "..", "Library");
+            var fileName = $"McpState_{toolName}.json";
+            return Path.GetFullPath(Path.Combine(libraryPath, fileName));
+        }
+
+        public static void SaveState<T>(string toolName, T state)
+        {
+            var path = GetStatePath(toolName);
+            Directory.CreateDirectory(Path.GetDirectoryName(path));
+            var json = JsonConvert.SerializeObject(state ?? Activator.CreateInstance<T>());
+            File.WriteAllText(path, json);
+        }
+
+        public static T LoadState<T>(string toolName)
+        {
+            var path = GetStatePath(toolName);
+            if (!File.Exists(path))
+            {
+                return default;
+            }
+
+            try
+            {
+                var json = File.ReadAllText(path);
+                return JsonConvert.DeserializeObject<T>(json);
+            }
+            catch (Exception)
+            {
+                return default;
+            }
+        }
+
+        public static void ClearState(string toolName)
+        {
+            var path = GetStatePath(toolName);
+            if (File.Exists(path))
+            {
+                File.Delete(path);
+            }
+        }
+    }
+}