Production smoke test on 2026-05-15: /api/lottemart/stores and /api/lottemart/products both fail with LOTTEMART_*_FAILED and '롯데마트 소켓 응답 헤더를 파싱하지 못했습니다.' User impact: LotteMart surface is unusable through REST, actions facade, and CLI. Acceptance: store search and product search return useful results or a graceful typed upstream-unavailable response, with tests for the parsing/error path.
Production smoke test on 2026-05-15: /api/lottemart/stores and /api/lottemart/products both fail with LOTTEMART_*_FAILED and '롯데마트 소켓 응답 헤더를 파싱하지 못했습니다.' User impact: LotteMart surface is unusable through REST, actions facade, and CLI. Acceptance: store search and product search return useful results or a graceful typed upstream-unavailable response, with tests for the parsing/error path.