{"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-6rhbpxbd","versions":[{"created_at":"2026-06-04T07:22:11Z","element_count":99,"note":"GA polish 2026-06-04: 総合 96.9→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"c08baa26cc4d64f7ab1fb8b4bd3cef5a3f5bc2452493ed768068a0be90a5b2a7","version":11},{"created_at":"2026-06-04T05:50:56Z","element_count":102,"note":"GA diverse re-design 2026-06-04: 総合 99.3→96.9 (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 96.9 (美 93 環 99 楽 100))","saved_by":"editor","sha256":"8fac7598642e68ba9c0d032d294a41346e9d4117db956db56f03fb3fb66e33d5","version":10},{"created_at":"2026-06-04T04:55:24Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 61.6→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"e989715f45c2714599c28ecf4e3e9524c84100470a282d475c12e8af51293e3e","version":9},{"created_at":"2026-06-04T04:55:24Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"185aad83451f19b1efbbc445a65dfaf14b833dbcabb9e6d46d1fc2be81345338","version":8}]}