{"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-g1-57gm4adj","versions":[{"created_at":"2026-06-04T05:49:51Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.7→99.7 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"285e057088b83aa5eb76c40be2fe5ffcbfe8e3fdc772eaec0daf41bbcaf3814d","version":4},{"created_at":"2026-06-04T04:56:52Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 49.8→99.7 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"a34fada2db7e4bbac2b6da156c3820b5dc5f77bbcd117f66b83331e22d8d9a40","version":3},{"created_at":"2026-06-04T04:56:52Z","element_count":17,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a981ab0a1393c6d5aec0f93e05ed04b1514e597ff2269985b1f2488bd93338e4","version":2}]}