style: ruff format & check

src/experiment_logger/config_utils.py

@@ -1,7 +1,6 @@
 """Configuration utilities for loading YAML configs and merging with CLI args."""
 
 import os
-import sys
 from typing import Dict, Any, Type, TypeVar
 import yaml
 from dataclasses import fields, is_dataclass

src/experiment_logger/unified_logger.py

@@ -6,9 +6,7 @@ This logger ensures all experimental data is preserved by writing to:
 3. stdout (for real-time monitoring)
 """
 
-import datetime
 import logging
-import subprocess
 import yaml
 import sys
 import time