imported datetime in depts

app/deps.py

@@ -4,7 +4,7 @@ from typing import Optional, TYPE_CHECKING
 import pathlib
 import logging
 import time
-
+from datetime import datetime 
 # ── Third-Party ────────────────────────────────────────────────────────────────
 import duckdb
 from fastapi import HTTPException, Header,Request, Depends