Update agent.py

agent.py

@@ -40,7 +40,7 @@ TOOLS = [
 
 # ───────────────────────────── Agent Wrapper ─────────────────────────────
 class SimpleLangGraphAgent:
-    def __init__(self, model_name="gpt-4o-mini"):
+    def __init__(self, model_name="gpt-4.1"):
         self.agent = create_react_agent(
             model=ChatOpenAI(model_name=model_name, temperature=0.3),
             tools=TOOLS,