{"success":true,"url":"https://x.bjbodao.com","favicon":"https://x.bjbodao.com/favicon.png","size":"32x32","source":"direct","cached":true,"cachedAt":"2026-09-28T09:31:17.837Z","cacheSource":"kv","error":"图片下载失败，已回退到JSON格式: Empty image response","imageDownloadFailed":true}