{"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-3po62qej","versions":[{"created_at":"2026-06-04T05:51:06Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"73298dff5777439fc6f2eb28e46667af42014bae2a7f5cd194c64e23a09acf75","version":10},{"created_at":"2026-06-04T04:53:08Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 71.7→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"5f021f6c2ebb1c2129dd229743f12469c00b2ff885d4e57f4998cbff386306ba","version":9},{"created_at":"2026-06-04T04:53:08Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f973c58fb26e9e1e3e66a0867cafc16d043ab8ab42d5216154a2bd65b9e58fbe","version":8}]}