{"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-g1-9gtvfjft","versions":[{"created_at":"2026-06-04T05:50:11Z","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":"7136038ca05e4a4a391be603754509a4d5da0d3e6ecbd6073df8578fc42461c2","version":4},{"created_at":"2026-06-04T04:57:30Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 46.9→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":"afcf41ca23b6f7c351237343b42fa326c7961abe2b4cfcaedc4c8e5e6b1db45b","version":3},{"created_at":"2026-06-04T04:57:30Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"72061dda180019822526b8a7830413c0e36dd122b2a130fffcf02bebf297a31f","version":2}]}