{"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-4yjmrgv6","versions":[{"created_at":"2026-06-04T05:50:07Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"bb8d85303b3aef584ce7676eaecfa0a28aa45f841981278917096a49f498bb41","version":10},{"created_at":"2026-06-04T04:53:17Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 70.8→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f460a361e84833126ff331a2f349644999828268308a2f355df963d028a08a1d","version":9},{"created_at":"2026-06-04T04:53:17Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4889ec1fb1705fe58e8851a297aad2774836ff5af0b5799a00e85478d5b21727","version":8}]}