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, 17 insertions, 1 deletions

diff --git a/shared/tests/test_db.py b/shared/tests/test_db.py
index 45d5dcd..b9a9d56 100644
--- a/shared/tests/test_db.py
+++ b/shared/tests/test_db.py
@@ -1,12 +1,14 @@
 """Tests for the SQLAlchemy async database layer."""
+
 import pytest
 from decimal import Decimal
 from datetime import datetime, timezone
-from unittest.mock import AsyncMock, MagicMock, patch, call
+from unittest.mock import AsyncMock, MagicMock, patch
 
 
 def make_candle():
     from shared.models import Candle
+
     return Candle(
         symbol="BTCUSDT",
         timeframe="1m",
@@ -21,6 +23,7 @@ def make_candle():
 
 def make_signal():
     from shared.models import Signal, OrderSide
+
     return Signal(
         id="sig-1",
         strategy="ma_cross",
@@ -35,6 +38,7 @@ def make_signal():
 
 def make_order():
     from shared.models import Order, OrderSide, OrderType, OrderStatus
+
     return Order(
         id="ord-1",
         signal_id="sig-1",
@@ -51,21 +55,25 @@ def make_order():
 class TestDatabaseConstructor:
     def test_stores_url(self):
         from shared.db import Database
+
         db = Database("postgresql://user:pass@localhost/db")
         assert db._database_url == "postgresql+asyncpg://user:pass@localhost/db"
 
     def test_converts_url_prefix(self):
         from shared.db import Database
+
         db = Database("postgresql://host/db")
         assert db._database_url.startswith("postgresql+asyncpg://")
 
     def test_keeps_asyncpg_prefix(self):
         from shared.db import Database
+
         db = Database("postgresql+asyncpg://host/db")
         assert db._database_url == "postgresql+asyncpg://host/db"
 
     def test_get_session_exists(self):
         from shared.db import Database
+
         db = Database("postgresql+asyncpg://host/db")
         assert hasattr(db, "get_session")
 
@@ -74,6 +82,7 @@ class TestDatabaseConnect:
     @pytest.mark.asyncio
     async def test_connect_creates_engine_and_tables(self):
         from shared.db import Database
+
         db = Database("postgresql+asyncpg://host/db")
 
         mock_conn = AsyncMock()
@@ -94,6 +103,7 @@ class TestDatabaseConnect:
     @pytest.mark.asyncio
     async def test_init_tables_is_alias_for_connect(self):
         from shared.db import Database
+
         db = Database("postgresql+asyncpg://host/db")
 
         mock_conn = AsyncMock()
@@ -116,6 +126,7 @@ class TestDatabaseClose:
     @pytest.mark.asyncio
     async def test_close_disposes_engine(self):
         from shared.db import Database
+
         db = Database("postgresql+asyncpg://host/db")
         mock_engine = AsyncMock()
         db._engine = mock_engine
@@ -127,6 +138,7 @@ class TestInsertCandle:
     @pytest.mark.asyncio
     async def test_insert_candle_uses_merge_and_commit(self):
         from shared.db import Database
+
         db = Database("postgresql+asyncpg://host/db")
 
         mock_session = AsyncMock()
@@ -147,6 +159,7 @@ class TestInsertSignal:
     @pytest.mark.asyncio
     async def test_insert_signal_uses_add_and_commit(self):
         from shared.db import Database
+
         db = Database("postgresql+asyncpg://host/db")
 
         mock_session = AsyncMock()
@@ -167,6 +180,7 @@ class TestInsertOrder:
     @pytest.mark.asyncio
     async def test_insert_order_uses_add_and_commit(self):
         from shared.db import Database
+
         db = Database("postgresql+asyncpg://host/db")
 
         mock_session = AsyncMock()
@@ -188,6 +202,7 @@ class TestUpdateOrderStatus:
     async def test_update_order_status_uses_execute_and_commit(self):
         from shared.db import Database
         from shared.models import OrderStatus
+
         db = Database("postgresql+asyncpg://host/db")
 
         mock_session = AsyncMock()
@@ -207,6 +222,7 @@ class TestGetCandles:
     @pytest.mark.asyncio
     async def test_get_candles_returns_list_of_dicts(self):
         from shared.db import Database
+
         db = Database("postgresql+asyncpg://host/db")
 
         # Create a mock row that behaves like a SA result row