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/scripts/test_signal_stream.py

@@ -16,13 +16,11 @@ Phase 6.1 測試腳本: Redis Streams Signal 流程驗證
 """
 
 import asyncio
-import json
 import os
 import sys
 
 import httpx
 
-
 API_BASE_URL = os.getenv("API_BASE_URL", "http://localhost:8000")
 SIGNAL_ENDPOINT = f"{API_BASE_URL}/api/v1/webhooks/signals"
 
@@ -55,7 +53,7 @@ async def main():
     print(f"[1] 發送測試 Signal 到 {SIGNAL_ENDPOINT}")
     try:
         result = await send_test_signal()
-        print(f"    ✅ 成功!")
+        print("    ✅ 成功!")
         print(f"    Message ID: {result.get('message_id')}")
         print(f"    Stream: {result.get('stream')}")
     except httpx.HTTPStatusError as e: