{"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-6myw0ixm","versions":[{"created_at":"2026-06-04T15:25:59Z","element_count":70,"note":"polish: batch-improve-100 2026-06-04 (92.5->93.1)","saved_by":"editor","sha256":"8193a96e79ee6a29a69d03145d75599bc2e896f6840146e69917cb26f676a1a1","version":12},{"created_at":"2026-06-04T15:25:02Z","element_count":70,"note":"polish: batch-improve-100 2026-06-04 (92.5->93.1)","saved_by":"editor","sha256":"8193a96e79ee6a29a69d03145d75599bc2e896f6840146e69917cb26f676a1a1","version":11},{"created_at":"2026-06-04T05:55:29Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 93.1→92.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.5 (美 94 環 100 楽 100))","saved_by":"editor","sha256":"49fea04af9418b2cfd64736ac26d7edaf95f8d8b911427c95d5744188bcbeba5","version":10},{"created_at":"2026-06-04T04:53:54Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 68.2→93.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"62e561e8eea878f4015603ecf6263d70e6fffe1a282c8a67009303bbdd3787f9","version":9},{"created_at":"2026-06-04T04:53:54Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"274434adbd368f3d85a8f0c8084faee12c070280ab7e14eb6f98daaa11db4188","version":8}]}