{"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-gtap1zak","versions":[{"created_at":"2026-06-04T16:59:26Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.6->99.8)","saved_by":"editor","sha256":"bacac1961042c0ed777d09b838235238adc08e97943ab40be7353c06e0e50c1b","version":11},{"created_at":"2026-06-04T05:55:03Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.6→91.6 (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 91.6 (美 96 環 100 楽 91))","saved_by":"editor","sha256":"1bbb034118498cfad66fb6434956753b2957b5f871426da5ac86048c8b89e776","version":10},{"created_at":"2026-06-04T04:54:59Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 64.1→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b24b9d3a2a167a6cfd7cc9ce86739dc2695a5c8c4e943ab170f456549584c35a","version":9},{"created_at":"2026-06-04T04:54:59Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e84f1a7f0f4e04da9ef24568580ce4dd0cbbd97d1097efce6271f25ce56e3d2e","version":8}]}