fix: 修复flake8 F811/F541问题

apps/worker/worker_app/tasks/batch_download.py

@@ -73,9 +73,6 @@ def batch_download_videos(self, video_ids: list[str], user_id: str = "") -> dict
         # 上传 zip 到 OSS
         if not zip_path.exists() or zip_path.stat().st_size == 0:
             raise RuntimeError("Batch download zip file is empty")
-
-        import uuid
-
         zip_storage_key = f"batch-downloads/{uuid.uuid4().hex}/{zip_filename}"
         download_url = upload_to_oss(str(zip_path), zip_storage_key)
 

tests/render_compare/create_test_asset.py

@@ -161,7 +161,7 @@ def create_asset(
     codec: str | None,
 ) -> dict:
     """创建 ready 状态的素材。"""
-    print(f"[2/2] 创建 ready 状态素材...")
+    print("[2/2] 创建 ready 状态素材...")
     body = {
         "project_id": project_id,
         "library_id": library_id,
@@ -243,8 +243,8 @@ def main():
     print()
     print("调用示例：")
     print(f"  export ASSET_ID={asset_id}")
-    print(f"  # 在生成任务中使用:")
-    print(f"  #   --asset-id $ASSET_ID")
+    print("  # 在生成任务中使用:")
+    print("  #   --asset-id $ASSET_ID")
     print()
 
     # 输出 asset_id 到 stdout（方便脚本捕获）