{"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-tz5qn4z8","versions":[{"created_at":"2026-06-04T16:59:56Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"8db5e8e4c2202cd560722537833f137b93205cd92cfdf457129f1b97ee951ae1","version":5},{"created_at":"2026-06-04T05:52:24Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 94.6→92.4 (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 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"85eb275097983695ad55de1057e5fcb2ce6a311c660ee681f039203cd066a97d","version":4},{"created_at":"2026-06-04T04:58:47Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 39.1→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"817e1af4462a32cda60720bcf27c50e78b3e7358340fc2933f46a4ab09a373af","version":3},{"created_at":"2026-06-04T04:58:47Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e50798b7e4fb3b413a52b48b7cf047e34ccf2713061ce235c792bd6c647c7326","version":2}]}