{"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-mphctkhy","versions":[{"created_at":"2026-06-10T22:52:30Z","element_count":66,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy81784771→quote23463716 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"3a7ac2af35b7618768ac2cc30af938e9fddb8564e2ca32ef639989e6b581f102","version":20},{"created_at":"2026-06-10T13:34:28Z","element_count":66,"note":"backfill: 延床=居室床スラブ実面積106.2㎡(基礎/屋外/ロフト除外)。設備数量/コスト過大の是正","saved_by":"mcp","sha256":"c2bb00d40edab8bd27b7e9d775186adb4e7282b665351089ea65b32a197cdca5","version":7},{"created_at":"2026-06-10T12:49:04Z","element_count":85,"note":"5軸GA polish 56->98 by M5 (autonomous)","saved_by":"mcp","sha256":"a6569b30db2edbc0675e74576c302f41cf91216ae537154567fc63edf67ae136","version":4}]}