fix: variable name compatibility modification

bot/openai/open_ai_bot.py

@@ -18,7 +18,7 @@ class OpenAIBot(Bot):
         # acquire reply content
         if not context or not context.get('type') or context.get('type') == 'TEXT':
             logger.info("[OPEN_AI] query={}".format(query))
-            from_user_id = context['from_user_id']
+            from_user_id = context.get('from_user_id') or context.get('session_id')
             if query == '#清除记忆':
                 Session.clear_session(from_user_id)
                 return '记忆已清除'
@@ -163,4 +163,4 @@ class Session(object):
 
     @staticmethod
     def clear_all_session():
-        user_session.clear()
+        user_session.clear()