{"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-g8wetr73","versions":[{"created_at":"2026-06-04T17:01:35Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"064e630ad8a542944eb857ff2e1c0e3a75c493d1fc145deef0b89def972bcb61","version":11},{"created_at":"2026-06-04T05:54:54Z","element_count":70,"note":"GA diverse re-design 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":"0272a479055a0a727df138c10fe4ec3c09fe48a007a6aaff0e9b489ee096db6d","version":10},{"created_at":"2026-06-04T04:56:02Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 58.1→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":"4e7f9431b08009b1f928acbf911d937480282f441567400e643504285ad8d666","version":9},{"created_at":"2026-06-04T04:56:01Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ab10d9b45bbaebb9aca35b153951a78cdb12936f8bd75b0af47823c83653a4ce","version":8}]}