{"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-g4-45e3ttvo","versions":[{"created_at":"2026-06-04T05:51:44Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.7→97.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4c3e15fac126cdb1d3dbe9e021e9eb2f42b110fde11f229e72fb6c0d8f29ec8b","version":4},{"created_at":"2026-06-04T04:53:14Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 71.5→97.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"35b0c3204fd85f2784dedf5488d6901c06c708524e00419e9bd10b6a3d81b6c0","version":3},{"created_at":"2026-06-04T04:53:14Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1a391977782e1f287068abe5e2955c2d53ba1ed14e0b8922e684d3ddaf8c993b","version":2}]}