{"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-59ec0ohr","versions":[{"created_at":"2026-06-04T05:51:30Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.3→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"060f1f6e55349105d89ee4fcb2e075bf1ae3914552d5cf895132a7190892ef99","version":10},{"created_at":"2026-06-04T04:54:43Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.5→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"ee785d43985c6b8b7177b7aee9a0443a310a1530e18f15be352ab16bf560e862","version":9},{"created_at":"2026-06-04T04:54:43Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c7cd1c50837386f6fa3bdb42898b0a5b919521464b7aa22109b5ed99a399302d","version":8}]}