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, 8 insertions, 2 deletions

diff --git a/shared/tests/test_events.py b/shared/tests/test_events.py
index 4bc7981..ab7792b 100644
--- a/shared/tests/test_events.py
+++ b/shared/tests/test_events.py
@@ -1,11 +1,12 @@
 """Tests for shared event types."""
-import pytest
+
 from decimal import Decimal
 from datetime import datetime, timezone
 
 
 def make_candle():
     from shared.models import Candle
+
     return Candle(
         symbol="BTCUSDT",
         timeframe="1m",
@@ -20,6 +21,7 @@ def make_candle():
 
 def make_signal():
     from shared.models import Signal, OrderSide
+
     return Signal(
         strategy="test",
         symbol="BTCUSDT",
@@ -33,6 +35,7 @@ def make_signal():
 def test_candle_event_serialize():
     """Test CandleEvent serializes to dict correctly."""
     from shared.events import CandleEvent, EventType
+
     candle = make_candle()
     event = CandleEvent(data=candle)
     d = event.to_dict()
@@ -44,6 +47,7 @@ def test_candle_event_serialize():
 def test_candle_event_deserialize():
     """Test CandleEvent round-trips through to_dict/from_raw."""
     from shared.events import CandleEvent, EventType
+
     candle = make_candle()
     event = CandleEvent(data=candle)
     d = event.to_dict()
@@ -56,6 +60,7 @@ def test_candle_event_deserialize():
 def test_signal_event_serialize():
     """Test SignalEvent serializes to dict correctly."""
     from shared.events import SignalEvent, EventType
+
     signal = make_signal()
     event = SignalEvent(data=signal)
     d = event.to_dict()
@@ -66,7 +71,8 @@ def test_signal_event_serialize():
 
 def test_event_from_dict_dispatch():
     """Test Event.from_dict dispatches to correct class."""
-    from shared.events import Event, CandleEvent, SignalEvent, EventType
+    from shared.events import Event, CandleEvent, SignalEvent
+
     candle = make_candle()
     event = CandleEvent(data=candle)
     d = event.to_dict()