fix knowledge order by (#43)

1. 修复知识库排序未按时间倒序

src/backend/bisheng/api/v1/knowledge.py

@@ -141,6 +141,7 @@ def get_knowledge(*,
         if 'admin' != payload.get('role'):
             sql = sql.where(Knowledge.user_id == payload.get('user_id'))
             count_sql = count_sql.where(Knowledge.user_id == payload.get('user_id'))
+        sql = sql.order_by(Knowledge.update_time.desc())
         total_count = session.scalar(count_sql)
 
         if page_num and page_size and page_num != 'undefined':

src/backend/bisheng/chat/manager.py

@@ -147,6 +147,8 @@ async def process_file(self, client_id: str, chat_id: str, user_id: int, file_pa
                         logger.info(f'key={key} set_filepath={file_path}')
                         value['file_path'] = file_path
 
+        # 如果L3
+
         file = ChatMessage(is_bot=False,
                            files=[{
                                'file_name': file_name

src/backend/bisheng/database/base.py

@@ -47,13 +47,14 @@ def create_db_and_tables():
             session.add(user)
             session.commit()
 
-        rts = session.exec(
-            select(Server).where(Server.endpoint == settings.bisheng_rt['server'])).all()
-        if not rts:
-            db_rt = Server(endpoint=settings.bisheng_rt['server'],
-                           server=settings.bisheng_rt['name'])
-            session.add(db_rt)
-            session.commit()
+        if settings.bisheng_rt:
+            rts = session.exec(
+                select(Server).where(Server.endpoint == settings.bisheng_rt['server'])).all()
+            if not rts:
+                db_rt = Server(endpoint=settings.bisheng_rt['server'],
+                               server=settings.bisheng_rt['name'])
+                session.add(db_rt)
+                session.commit()
 
 
 def get_session():