{"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-haroldsendhouse-ghyphqbe","versions":[{"created_at":"2026-06-10T22:52:17Z","element_count":66,"note":"legacy fix: jpy87379776→quote25174952 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"fc976df86e9b550f25445907974e194ac20ac3641e09ff71bdda0240770e4a8a","version":25},{"created_at":"2026-06-10T13:22:30Z","element_count":66,"note":"backfill: 延床=居室床スラブ実面積118.8㎡(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":"58e2e00594eca692c11353786cf071f7e4b2b4e52fa82cd6cab4cad2e88d17cb","version":10},{"created_at":"2026-06-10T10:23:30Z","element_count":84,"note":"5軸GA polish 43->98 by M5 (autonomous)","saved_by":"mcp","sha256":"7028bc79801898dc0604046aba5237742046f060fe11d888cfd2ac1e7afbd14b","version":2}]}