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, 7 insertions, 2 deletions

diff --git a/services/strategy-engine/src/strategy_engine/main.py b/services/strategy-engine/src/strategy_engine/main.py
index 2e3c4ac..53681d1 100644
--- a/services/strategy-engine/src/strategy_engine/main.py
+++ b/services/strategy-engine/src/strategy_engine/main.py
@@ -1,4 +1,5 @@
 """Strategy Engine Service entry point."""
+
 import asyncio
 from pathlib import Path
 
@@ -20,7 +21,9 @@ async def run() -> None:
     config = StrategyConfig()
     log = setup_logging("strategy-engine", config.log_level, config.log_format)
     metrics = ServiceMetrics("strategy_engine")
-    notifier = TelegramNotifier(bot_token=config.telegram_bot_token, chat_id=config.telegram_chat_id)
+    notifier = TelegramNotifier(
+        bot_token=config.telegram_bot_token, chat_id=config.telegram_chat_id
+    )
 
     broker = RedisBroker(config.redis_url)
 
@@ -53,7 +56,9 @@ async def run() -> None:
 
             while True:
                 last_id = await engine.process_once(stream, last_id)
-                metrics.events_processed.labels(service="strategy-engine", event_type="candle").inc()
+                metrics.events_processed.labels(
+                    service="strategy-engine", event_type="candle"
+                ).inc()
     except Exception as exc:
         log.error("fatal_error", error=str(exc))
         await notifier.send_error(str(exc), "strategy-engine")