{"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-g2ldk-gzkngdox","versions":[{"created_at":"2026-06-04T17:01:12Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"7e6a84591ee1a87ea65a3aaa30dbdf6177ec71f70215a150d0b24150a7bf1f3d","version":5},{"created_at":"2026-06-04T05:52:26Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f97e34bc5b0db354c4d51c3397e6fce50befcafac8b05f8ee9074f71d09fa6a4","version":4},{"created_at":"2026-06-04T04:56:46Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 51.1→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"43f9fe84823d4171a35084025b3c8c67801f160b034ce9d0571d7b1758e1a50f","version":3},{"created_at":"2026-06-04T04:56:46Z","element_count":17,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"6a2f01270fdd222b92fe63ab67120b534fb82676dc71636bf0763705d2ff683c","version":2}]}