Add two-stage charged-crystal demo and original art set.

tools/recipe-tree-editor/start-editor.cmd

@@ -0,0 +1,17 @@
+@echo off
+setlocal
+where node.exe >nul 2>nul
+if errorlevel 1 (
+  echo [配方树工作台] 未找到 Node.js。请安装 Node.js 20 或更高版本后重试。
+  pause
+  exit /b 1
+)
+
+powershell.exe -NoProfile -ExecutionPolicy Bypass -File "%~dp0start-editor.ps1"
+
+if errorlevel 1 (
+  echo [配方树工作台] 启动失败。请在当前目录运行 node server.mjs 查看原因。
+  pause
+  exit /b 1
+)
+endlocal