{"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-k6upxmz0","versions":[{"created_at":"2026-06-04T17:01:28Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (93.5->93.6)","saved_by":"editor","sha256":"5d7b5409c6f09088c102c27d323ddcbe767e761e92c922b08b973318b2abf8a4","version":11},{"created_at":"2026-06-04T05:55:16Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.5→93.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"9cf4136c0567791eefbea11a39400d44780278a465b8ed8c7e49ac3aaab9b60e","version":10},{"created_at":"2026-06-04T04:53:29Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 70.0→93.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"ced60018d6b6c641f7859931d18e691dce2eea07140844ce5652ffa8865d617b","version":9},{"created_at":"2026-06-04T04:53:29Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1fda697f8c65e9944dece3283584f88f05a504ab2e8c5138531adbbb7f9c7df8","version":8}]}