Format code with ruff to pass CI format check

tests/test_streamer.py

@@ -19,7 +19,9 @@ from tradefinder.data.streamer import (
     MarkPriceMessage,
 )
 
-pytestmark = pytest.mark.skip(reason="Async WebSocket tests have timing issues - streamer verified manually")
+pytestmark = pytest.mark.skip(
+    reason="Async WebSocket tests have timing issues - streamer verified manually"
+)
 
 
 @pytest.fixture

tests/test_supertrend.py

@@ -126,10 +126,14 @@ class TestSupertrendStrategySignals:
         candles = _build_candle_sequence(base_timestamp, partial)
         assert strategy.generate_signal(candles) is None
 
-    def test_generate_signal_empty_candles_returns_none(self, default_strategy: SupertrendStrategy) -> None:
+    def test_generate_signal_empty_candles_returns_none(
+        self, default_strategy: SupertrendStrategy
+    ) -> None:
         assert default_strategy.generate_signal([]) is None
 
-    def test_generate_signal_none_input_raises_type_error(self, default_strategy: SupertrendStrategy) -> None:
+    def test_generate_signal_none_input_raises_type_error(
+        self, default_strategy: SupertrendStrategy
+    ) -> None:
         with pytest.raises(TypeError):
             default_strategy.generate_signal(None)  # type: ignore[arg-type]