{"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-rc3-w1vdun29","versions":[{"created_at":"2026-06-04T14:56:57Z","element_count":72,"note":"polish: batch-improve-100 2026-06-04 (95.0->95.1)","saved_by":"editor","sha256":"9384e0dbedbb5179f071b4ea6196c0b45cf6a33c5288e509e21e0fdf0b000053","version":5},{"created_at":"2026-06-04T05:51:37Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 98.0→95.0 (総2階(箱)・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 95.0 (美 95 環 95 楽 91))","saved_by":"editor","sha256":"cd23f4eb892557bac425c7dc68c3cebf6f63864a3c2e9886dd56af6569bcb3f7","version":4},{"created_at":"2026-06-04T04:56:57Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 49.0→98.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.0 (美 100 環 94 楽 100))","saved_by":"editor","sha256":"4ccd434b58b38541926279997332a79d8f675ac7c301bf4ceade5f832c3d6fb1","version":3},{"created_at":"2026-06-04T04:56:57Z","element_count":75,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"6038851c30f616c453c2272ef19a99fbcbf2dfc3472f7a5ad7a9c7987d6efd4a","version":2}]}