change/use-4.1-mini-for-testing-instead

src/chatbot/llm_engine.py

@@ -15,7 +15,7 @@ from datetime import datetime
 load_dotenv()
 client = openai.OpenAI()
 
-MODEL = "gpt-4.1"
+MODEL = "gpt-4.1-mini"
 
 llm_overall_agent = ChatOpenAI(
     model=MODEL,