{"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-g2-6wytvqep","versions":[{"created_at":"2026-06-04T17:00:47Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.5->100.0)","saved_by":"editor","sha256":"60ab2760296f3541013001d1952610be6ecb544f6fae40291352c68cdbb51f08","version":5},{"created_at":"2026-06-04T05:53:52Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.8→91.5 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 91.5 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"7457cc3040c4b6c302bf56c851c0201df2b5eaaa20b8d0c79c6a733a662489a8","version":4},{"created_at":"2026-06-04T04:56:00Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 58.3→93.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"a4ca5b82b259ace1f9357e6040a8db8484e4dfc7188594edc450c4b9c7e1387c","version":3},{"created_at":"2026-06-04T04:56:00Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"57209a7afec326945b0e263c399cf2d87f7f81a8bb489a31e677fc9d6ebd74a9","version":2}]}