{"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-30es551l","versions":[{"created_at":"2026-06-04T17:00:15Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.5->99.7)","saved_by":"editor","sha256":"7b206d8774de2890376ef1eeb4217372a517f031c250ef6c24aeac927e869509","version":11},{"created_at":"2026-06-04T05:53:53Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.7→91.5 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 91.5 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"2ea937b0cdbe2d84b814646ccb764f268cfe50483deaeb3680e5e83a802a3b1f","version":10},{"created_at":"2026-06-04T04:53:47Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 68.8→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e5aab23373571358a2f726f978425592689b90f4f7e77c808a1fcf33a553a159","version":9},{"created_at":"2026-06-04T04:53:46Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5b10db0a7a10ffa1b5dccd2e5f9328a13370f32b026580a829ce0ec0683ed560","version":8}]}