{"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-2-t9javi8o","versions":[{"created_at":"2026-06-04T17:01:15Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (92.6->97.2)","saved_by":"editor","sha256":"b0ec6f4b53b3adc6c2c481636d07b7a91f58be434db1ee052ff31fd9280e0495","version":11},{"created_at":"2026-06-04T05:55:44Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.6→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"7e673f214b09c4fb8f154d460ccf0a955bc5a74772d0415ef09f8ec27e129320","version":10},{"created_at":"2026-06-04T04:53:48Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 68.7→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cf37e64757e58f5792fbd2d83b21278d7d6dbe74fdbf5bf394368b657b665484","version":9},{"created_at":"2026-06-04T04:53:48Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ec7db32e16f61210e22566b70ca263823c66e63264f89e68bc5e19c967b20a20","version":8}]}