{"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-9cpmik09","versions":[{"created_at":"2026-06-04T05:51:00Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.3→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 100 楽 100))","saved_by":"editor","sha256":"aae64b7a706dac5211366a140c25b8ab842224ddad3240a3416b79f51d92e820","version":10},{"created_at":"2026-06-04T04:53:05Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 72.1→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 100 楽 100))","saved_by":"editor","sha256":"3982e522e71dcd98ebdea8e074f4ac55635771f2c63e731e3706bb426b519de7","version":9},{"created_at":"2026-06-04T04:53:05Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c54507741600fbed0e286ba4794882b69e5d54bf97284ef4cdfe2cc1d5e8811d","version":8}]}