{"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-q12lxd9y","versions":[{"created_at":"2026-06-04T17:00:52Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (92.4->97.8)","saved_by":"editor","sha256":"eede534b803e2989039796e4dadab790001902ecc241f4277a160516c6a454be","version":11},{"created_at":"2026-06-04T05:55:49Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.4→92.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.4 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"d069ca0f19d53a2b5ada6d807bd542f73a7839a98c7a85c264ec1ad8e74ec87a","version":10},{"created_at":"2026-06-04T04:57:42Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 46.3→92.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.4 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"ab5f03b5a096a4b4e8b1e87bdede356d6cb3ce5635f411cf7e5db8a562b38a9f","version":9},{"created_at":"2026-06-04T04:57:42Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7e25f62a097c67862e70426e35f8ef90da246db666616cb85037991340008b50","version":8}]}