{"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-lz2l0d30","versions":[{"created_at":"2026-06-04T17:01:17Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.8->99.8)","saved_by":"editor","sha256":"7c9ebfdc6f83f6f437fc90bff48181e836ad6a2d5fefbd40754e4bb8798176ca","version":12},{"created_at":"2026-06-04T14:56:56Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (90.4->90.8)","saved_by":"editor","sha256":"e153157b93ad11e2b0d64f4d50d35eafd12c6e2bad923a0eb306a5924ed8f44b","version":11},{"created_at":"2026-06-04T05:49:33Z","element_count":54,"note":"GA diverse re-design 2026-06-04: 総合 100.0→90.4 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 南面サンルーム / 適応度 90.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"206897d054ea02a0bde930815efccd67740cc2ca850cc5eff533c2a0016f7214","version":10},{"created_at":"2026-06-04T04:53:32Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 69.9→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e46f6f5487be538063552030e7501fb7e7ab86a67d8b322a22f33d2f118ef096","version":9},{"created_at":"2026-06-04T04:53:32Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"66ec4a8934b74f0a339c82e4d8eb8f98b6c82a479d503c845ba6c67a42c2c85f","version":8}]}