bug fix for xai support

.gitignore

@@ -9,3 +9,4 @@ eval_results/
 eval_data/
 *.egg-info/
 .env
+.history

tradingagents/graph/trading_graph.py

@@ -63,47 +63,6 @@ class TradingAgentsGraph:
         self.debug = debug
         self.config = config or DEFAULT_CONFIG
     
-        # get the language
-        self.output_language = self.config.get("output_language", "en")
-        self.language_instruction = self.config.get("language_system_prompts", {}).get(
-            self.output_language, ""
-        )
-
-        self._setup_agents()
-        self._setup_graph()
-
-        def _setup_agents(self):
-            """初始化所有 agents，並注入語言指示"""
-            # 為每個 agent 加入語言指示
-            if self.language_instruction:
-                self._inject_language_to_agents()
-        
-        def _inject_language_to_agents(self):
-            """將語言指示注入所有 agents"""
-            # 這個方法會在每個 agent 的 system message 前加入語言指示
-            self.language_system_message = SystemMessage(content=self.language_instruction)
-        
-        def _create_agent_with_language(self, agent_name, agent_prompt, llm):
-            """創建帶有語言指示的 agent"""
-            from langchain.agents import AgentExecutor, create_openai_functions_agent
-            from langchain.prompts import ChatPromptTemplate, MessagesPlaceholder
-            
-            # 構建包含語言指示的 prompt
-            if self.language_instruction:
-                system_prompt = f"{agent_prompt}{self.language_instruction}"
-            else:
-                system_prompt = agent_prompt
-            
-            prompt = ChatPromptTemplate.from_messages([
-                ("system", system_prompt),
-                MessagesPlaceholder(variable_name="chat_history", optional=True),
-                ("human", "{input}"),
-                MessagesPlaceholder(variable_name="agent_scratchpad"),
-            ])
-            
-            agent = create_openai_functions_agent(llm, tools=[], prompt=prompt)
-            return AgentExecutor(agent=agent, tools=[], verbose=self.debug)
-    
         # Update the interface's config
         set_config(self.config)