{"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-9tkgfavb","versions":[{"created_at":"2026-06-04T17:01:00Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (92.6->98.6)","saved_by":"editor","sha256":"dd84f81db07516a216f25c2dd49e2412e4df6ad03df63ec29604695fa8a09678","version":11},{"created_at":"2026-06-04T05:55:40Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.6→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6419207555132d87f97f42760843761f795443a267a83f2fb835b6e19fce77a7","version":10},{"created_at":"2026-06-04T04:57:13Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 47.8→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4a9ef4f02adf121ad05d69ecbd4d5eb3dd944b623f2dc64e99072a0d698c48b4","version":9},{"created_at":"2026-06-04T04:57:13Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0486628efbc228ad1d710ec8ff58fa34a4146055755472d84d4ee250e5c5b557","version":8}]}