新增robot；调整engineer

_backend/constant.py

@@ -1,5 +1,6 @@
 from pathlib import Path
 import os
+from autogen_ext.code_executors.docker import DockerCommandLineCodeExecutor
 
 
 # Define your API keys and configurations
@@ -16,7 +17,7 @@ SILENT = True # 关闭嵌套智能体的输出
 STREAM = True # stream on console
 CACHE = None # None 就是关闭 41是默认值开启
 
-current_path = os.path.dirname(os.path.abspath(__file__))
-WORK_DIR = Path(current_path, ".coding")
-WORK_DIR.mkdir(exist_ok=True)
-
+WORK_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), ".coding")
+if not os.path.exists(WORK_DIR):
+    os.mkdir(WORK_DIR)
+# code_executor = DockerCommandLineCodeExecutor(work_dir=WORK_DIR)