Update app.py

app.py

@@ -8,6 +8,7 @@ import logging
 from datetime import datetime
 from collections import Counter
 from typing import Any, Dict, List, Optional, Tuple
+import numpy as np
 
 # Suppress Ultralytics warning by setting a writable config directory
 os.environ["YOLO_CONFIG_DIR"] = "/tmp/Ultralytics"