{"note":"bim_versions 導入後の保存のみ記録 (それ以前は bim_canonical 上書きで履歴なし)","ok":true,"slug":"u-house-buwpduee","versions":[{"created_at":"2026-06-10T22:57:50Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy63545472→quote21141931 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"626328240edc44283694151293b27acdbb365c5c8e259826c5c9586bdd6624c7","version":9},{"created_at":"2026-06-10T19:34:24Z","element_count":73,"note":"5軸GA polish 56->91 by M5 (autonomous)","saved_by":"mcp","sha256":"7988ca80a22c086d18671550aff9354bbe12d93e3d49f0b17a7cb3fd4b278410","version":2}]}