fix: resolve lint issues and final integration fixes

- Fix ambiguous variable name in binance_rest.py
- Remove unused volumes variable in volume_profile_strategy.py
- Fix import ordering in backtester main.py and test_metrics.py
- Auto-format all files with ruff

1 files changed, 1 insertions, 3 deletions

diff --git a/shared/tests/test_notifier.py b/shared/tests/test_notifier.py
index 09e731a..3d29830 100644
--- a/shared/tests/test_notifier.py
+++ b/shared/tests/test_notifier.py
@@ -1,12 +1,10 @@
 """Tests for Telegram notification service."""
-import os
+
 import uuid
 from decimal import Decimal
-from datetime import datetime, timezone
 from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
-import pytest_asyncio
 
 from shared.models import Signal, Order, OrderSide, OrderType, OrderStatus, Position
 from shared.notifier import TelegramNotifier