{"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-hale-t9ob9mmf","versions":[{"created_at":"2026-06-04T05:49:37Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.9→99.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f2e876ac39ded3d6653e66cfae0dbf095fb57afd89c07208464c728814cde07b","version":10},{"created_at":"2026-06-04T04:55:30Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 61.1→99.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"76acdc956b57adae01a30408ae4c168aead52b2edd97fb1820a4c4400acead31","version":9},{"created_at":"2026-06-04T04:55:30Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1f8dc68331b0df62ecd249b3259b2eaff88eed423a453b39c0640274d3b5b444","version":8}]}