{"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-ory4nyfx","versions":[{"created_at":"2026-06-10T23:23:55Z","element_count":73,"note":"5軸GA polish 54->97 by M5 (autonomous)","saved_by":"mcp","sha256":"40dea357198049551f8f4edf878c4280f5382bd84244d9dd6d328171feedde52","version":10},{"created_at":"2026-06-10T23:07:46Z","element_count":50,"note":"legacy fix: rooms設備語除去 / jpy30120000→quote17021282 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"05cb9c10d07440f344ddf6c976f7cdde5daad76f9435a37ee62aac8c7b60bfaf","version":7}]}