fix(lint): ruff auto-fix + lewooogo-core src 加入 git

- Python: ruff --fix 修復 280 個 lint 錯誤
- lewooogo-core: src/ 目錄未追蹤，導致 CI eslint 失敗

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/api/src/workers/__init__.py

@@ -13,9 +13,9 @@ Phase 6.1: Event Bus Workers
 
 from src.workers.signal_worker import (
     SignalWorker,
+    close_signal_worker,
     get_signal_worker,
     init_signal_worker,
-    close_signal_worker,
 )
 
 __all__ = [