Update chat_handler.py

chat_handler.py

@@ -2,7 +2,7 @@ from fastapi import Request
 from fastapi.responses import JSONResponse
 import traceback
 import random
-from intent import extract_parameters, validate_variable_formats, detect_intent
+from intent_utils import extract_parameters, validate_variable_formats, detect_intent
 from intent_api import execute_intent
 from log import log
 from llm_model import Message, LLMModel