在startup中自动执行 create_tables， 确保数据库表被创建

startup.py

@@ -36,6 +36,7 @@ from server.utils import (fschat_controller_address, fschat_model_worker_address
                           fschat_openai_api_address, set_httpx_config, get_httpx_client,
                           get_model_worker_config, get_all_model_worker_configs,
                           MakeFastAPIOffline, FastAPI, llm_device, embedding_device)
+from server.knowledge_base.migrate import create_tables
 import argparse
 from typing import Tuple, List, Dict
 from configs import VERSION
@@ -866,6 +867,8 @@ async def start_main_server():
                 logger.info("Process status: %s", p)
 
 if __name__ == "__main__":
+    # 确保数据库表被创建
+    create_tables()
 
     if sys.version_info < (3, 10):
         loop = asyncio.get_event_loop()