Rabbbit: Cleanup may delete server’s built-in tool subfolders — restrict to managed names.

Author: JohanHoltby

MCPForUnity/Editor/Helpers/ServerInstaller.cs

@@ -557,6 +557,10 @@ private static void CleanupStaleToolFolders(string destToolsDir, HashSet<string>
                         if (subdirName.Equals(skip, StringComparison.OrdinalIgnoreCase))
                             goto NextSubdir;
                     }
+					
+					// Only manage per-folder tool installs created by this feature
++                    if (!subdirName.EndsWith("_MCPForUnityTools", StringComparison.OrdinalIgnoreCase))
++                        goto NextSubdir;
 
                     // Check if this subdirectory corresponds to an active tools folder
                     if (!activeFolderIdentifiers.Contains(subdirName))