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

2 files changed, 5 insertions, 9 deletions

diff --git a/services/data-collector/tests/test_binance_rest.py b/services/data-collector/tests/test_binance_rest.py
index 695dcf9..bf88210 100644
--- a/services/data-collector/tests/test_binance_rest.py
+++ b/services/data-collector/tests/test_binance_rest.py
@@ -1,4 +1,5 @@
 """Tests for binance_rest module."""
+
 import pytest
 from decimal import Decimal
 from unittest.mock import AsyncMock, MagicMock
@@ -19,9 +20,7 @@ async def test_fetch_historical_candles_parses_response():
         ]
     )
 
-    candles = await fetch_historical_candles(
-        mock_exchange, "BTC/USDT", "1m", since=ts, limit=500
-    )
+    candles = await fetch_historical_candles(mock_exchange, "BTC/USDT", "1m", since=ts, limit=500)
 
     assert len(candles) == 2
 
@@ -35,9 +34,7 @@ async def test_fetch_historical_candles_parses_response():
     assert c.close == Decimal("30050.0")
     assert c.volume == Decimal("1.5")
 
-    mock_exchange.fetch_ohlcv.assert_called_once_with(
-        "BTC/USDT", "1m", since=ts, limit=500
-    )
+    mock_exchange.fetch_ohlcv.assert_called_once_with("BTC/USDT", "1m", since=ts, limit=500)
 
 
 @pytest.mark.asyncio
@@ -46,8 +43,6 @@ async def test_fetch_historical_candles_empty_response():
     mock_exchange = MagicMock()
     mock_exchange.fetch_ohlcv = AsyncMock(return_value=[])
 
-    candles = await fetch_historical_candles(
-        mock_exchange, "BTC/USDT", "1m", since=1700000000000
-    )
+    candles = await fetch_historical_candles(mock_exchange, "BTC/USDT", "1m", since=1700000000000)
 
     assert candles == []
diff --git a/services/data-collector/tests/test_storage.py b/services/data-collector/tests/test_storage.py
index 6b27414..be85578 100644
--- a/services/data-collector/tests/test_storage.py
+++ b/services/data-collector/tests/test_storage.py
@@ -1,4 +1,5 @@
 """Tests for storage module."""
+
 import pytest
 from decimal import Decimal
 from datetime import datetime, timezone