api的system prompt独立出去，不要写在代码里面

_backend/utils.py

@@ -7,6 +7,7 @@ Contact: yt.li2@siat.ac.cn
 import os
 import boto3
 import logging
+import yaml
 from typing import Optional, Dict
 from pydantic import Field
 from pydantic_settings import BaseSettings
@@ -69,4 +70,8 @@ def handle_minio_upload(file_path: str, file_name: str) -> str:
         return url.replace(settings.internal_minio_endpoint or "", settings.minio_endpoint)
     
     except Exception as e:
-        return handle_minio_error(e)
+        return handle_minio_error(e)
+    
+def load_agent_configs(config_path):
+    with open(config_path, 'r') as file:
+        return yaml.safe_load(file)