{"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-2-c386g7bu","versions":[{"created_at":"2026-06-04T17:01:17Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (90.7->99.2)","saved_by":"editor","sha256":"589b44d0ebf5fe993c4f4cc9022d0ca3ad028aef946e9f7c00a9bde22c162536","version":12},{"created_at":"2026-06-04T06:04:29Z","element_count":55,"note":"GA diverse final 2026-06-04: 総合 89.0→90.7 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 90.7 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"7af584a9afc0aac9396093ecf1523ff7afb487f0fdd34a6e570bf39d0fa964eb","version":11},{"created_at":"2026-06-04T05:49:26Z","element_count":53,"note":"GA diverse re-design 2026-06-04: 総合 100.0→89.0 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 89.0 (美 93 環 100 楽 91))","saved_by":"editor","sha256":"6d210bd2c810b04a3d53a492aa63784afe86b078fa6a7dd7235fdc55d91635b6","version":10},{"created_at":"2026-06-04T04:57:36Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 46.5→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"30a46c840c71c49a300cfd24220c0dc4a25efb0610bead26cfa020ca3064344e","version":9},{"created_at":"2026-06-04T04:57:36Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"74d16407cabfe15fd2f1dc37b48d3c589cb64400ee3105636a4716a3693d711c","version":8}]}