{"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-slh6y8u4","versions":[{"created_at":"2026-06-04T05:50:35Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"bfd5e385d721d2489ef652f2ac327d6e80c9ff9b7696b41cc09073bddac96012","version":10},{"created_at":"2026-06-04T04:53:57Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 68.1→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cab7b1e5df17b40a7a605042c207bffc1c6529a0ab48964e0e20359c972c72db","version":9},{"created_at":"2026-06-04T04:53:57Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"55b0dec0e0af82a26e8e5bde6b2df8ac10145fecfa0a41722e529f7ad71a01f7","version":8}]}