feat: 优化图片资源删除管理，生图任务列表管理

server/worker.py

@@ -0,0 +1,20 @@
+"""命令入口：`python -m worker`，与 Web 进程独立运行。"""
+from __future__ import annotations
+
+import argparse
+import asyncio
+import logging
+
+from services.job_worker import run_worker
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description="Ozon Seller Kit background worker")
+    parser.add_argument("--once", action="store_true", help="最多处理一个已到期子项后退出（用于诊断/测试）")
+    args = parser.parse_args()
+    logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s %(name)s: %(message)s")
+    asyncio.run(run_worker(once=args.once))
+
+
+if __name__ == "__main__":
+    main()