{"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-5gn483lr","versions":[{"created_at":"2026-06-04T05:49:47Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.8→99.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"32f5cfcd84fb48cb0266a65f319c1809f03ad750367397a7928e54cfb51634e3","version":10},{"created_at":"2026-06-04T04:55:29Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 61.3→99.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d4cf94d6e2c18e3550085042e9267d9f1527301bbfa5e6c485d7143a1a50e133","version":9},{"created_at":"2026-06-04T04:55:29Z","element_count":28,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"dbe40baaa9f4257dfe7c1a99c1484bb467ea94790692ae21ec6fbc7432015f27","version":8}]}