{"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-ztmxonch","versions":[{"created_at":"2026-06-10T22:52:19Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy68153976→quote22225213 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"17a3bd9442b15536d87c37da42a4d13286523401599a79d12ded047744f8befe","version":26},{"created_at":"2026-06-10T22:00:05Z","element_count":54,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"e952f952523a05edc40c16791df5dd726994a428ac92efc24d02b62451f61ba1","version":20},{"created_at":"2026-06-10T13:24:32Z","element_count":85,"note":"backfill: 延床=居室床スラブ実面積92.5㎡(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":"02f39912cfb5b903e13f0f0745e722a954c04285e8435a358e7affc63c650f91","version":10},{"created_at":"2026-06-10T10:53:01Z","element_count":84,"note":"5軸GA polish 61->98 by M5 (autonomous)","saved_by":"mcp","sha256":"5bd3747f7436cf613b9af104535355e85d5c149a1e4aaee2994423abc30b3627","version":3}]}