{"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-knollviewhouse-72077pt1","versions":[{"created_at":"2026-06-10T22:52:15Z","element_count":85,"note":"legacy fix: jpy90050184→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":"728f02adc90cc0c5ef00d2429b72ab4782463eea2e22b7306e03618d7ff0159e","version":25},{"created_at":"2026-06-10T13:19:51Z","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":"2026-06-10T10:09:49Z","element_count":90,"note":"5軸GA polish 43->98 by M5 (autonomous)","saved_by":"mcp","sha256":"24602836699e7ce4b885979127e972b8f74a6d62a66a2735a5d1a06a3cad164c","version":2}]}