{"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-n509jkho","versions":[{"created_at":"2026-06-04T05:50:19Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f71a81dea334ab14a411b0db7e5894910adaf2bd6107e2687d860691dc6c54d8","version":10},{"created_at":"2026-06-04T04:57:44Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 46.1→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e25cd92cf6160366a4b79f75a09c278e6e75622d3db12ebb18a21b4b3b680b50","version":9},{"created_at":"2026-06-04T04:57:44Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7e01af6d880a2cc821bb8ec059db992eadef9823f1f936b658f2df8907cd4114","version":8}]}