style: fix import sorting (ruff I001)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mohamed-elkholy95

nanobot/providers/openai_compat_provider.py

@@ -4,11 +4,11 @@
 
 import asyncio
 import hashlib
-import time
 import importlib.util
 import os
 import secrets
 import string
+import time
 import uuid
 from collections.abc import Awaitable, Callable
 from typing import TYPE_CHECKING, Any