{"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-5jx99ooy","versions":[{"created_at":"2026-06-04T05:50:15Z","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":"998b17ae1ab337251641c8787ec14cf753cdfc212ce38bbf16dcc2eac32cb867","version":10},{"created_at":"2026-06-04T04:54:08Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 67.2→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":"1a882474058b1fec716d0b49dc6b57bc45545202708a1fdb0e7bdb2cacd4b04c","version":9},{"created_at":"2026-06-04T04:54:08Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e4f7053b4c6df5f83af1bd8abf21d5a7592ce4482f01495fdfa2e8a488fce010","version":8}]}