Apply S3 lifecycle to expire old objects yc

Auto-expire objects under prefix after 30d to cut storage cost

aws --endpoint-url=https://storage.yandexcloud.net s3api put-bucket-lifecycle-configuration --bucket <name> --lifecycle-configuration '{"Rules":[{"ID":"expire-logs","Status":"Enabled","Filter":{"Prefix":"logs/"},"Expiration":{"Days":30}}]}'