{"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-k72pc7s8","versions":[{"created_at":"2026-06-04T07:22:25Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.0→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6c6045b6b67f2056b4432b1cff1e1dec0d1c3713bf33bf8fe5d545a1d5254785","version":11},{"created_at":"2026-06-04T05:53:45Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 94.1→93.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.0 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"1127c28c2485f4d909fd3b93e2578b9ef5cf143228ad9aa4fa5572e76ef242d2","version":10},{"created_at":"2026-06-04T04:59:10Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 38.1→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"89c475c2ca39c027cfd06ef4c352e61184fae8b65e15c4e07540675c669f2b8b","version":9},{"created_at":"2026-06-04T04:59:10Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"96a3ae2842aa4010055d3acbdbf86d10cf660b5f1f5db287b54916386d358624","version":8}]}