{"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-we1dp9g1","versions":[{"created_at":"2026-06-04T17:01:16Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.4->99.7)","saved_by":"editor","sha256":"6c4d2d4cd4ab34df1fcc4d85b30d186012e8fc2c47fcf6ae63cb8586530ef625","version":11},{"created_at":"2026-06-04T05:55:37Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 92.6→91.4 (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 91.4 (美 96 環 100 楽 91))","saved_by":"editor","sha256":"9505b43885fc5c501f6a3857c8fc8c0fcfdebd85bb9af0fe8fda0edaeecc3ec6","version":10},{"created_at":"2026-06-04T04:53:50Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 68.6→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.6 (美 94 環 100 楽 100))","saved_by":"editor","sha256":"b9025eeb26b88b07ff94918b1ef7a0bc51378726f4594f086dbb0554c3883316","version":9},{"created_at":"2026-06-04T04:53:50Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e1349b6d7bb70e00147b4f6c39bb0f22a61fbb20937fdae55f4676c2fb6cb627","version":8}]}