{"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-uma-7fz4hjeg","versions":[{"created_at":"2026-06-04T07:22:22Z","element_count":70,"note":"GA polish 2026-06-04: 総合 93.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"c80f910dbbdf3a0bd88449a34d1d845d67789c2b918efa761e7f332fb2d06a98","version":11},{"created_at":"2026-06-04T05:53:24Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 94.6→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"9611e2703cd8e254693189cbbd05edc5bac3894ff0992743baefff21e740759f","version":10},{"created_at":"2026-06-04T04:54:56Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 64.4→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e3cd1a36ed8b1721661825c2333145191af087c8a892ed387aa00e2d655a0cc3","version":9},{"created_at":"2026-06-04T04:54:56Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"9665014b81727227e959e9c75ab0a162eaa9744b380959d00421f7e3b7409426","version":8}]}