{"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-k9giuzoi","versions":[{"created_at":"2026-06-10T22:57:57Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy63545472→quote21288702 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"c5b262ef02cfe0a53c3445cbff88a39d0258119494287a163d919087864ea9bf","version":9},{"created_at":"2026-06-10T19:50:42Z","element_count":72,"note":"5軸GA polish 56->92 by M5 (autonomous)","saved_by":"mcp","sha256":"f5b9bbf16da12fcb27cd94b16058550e1070d1806a418c078af023d9b53b42f6","version":2}]}