{"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-ubzvbwdp","versions":[{"created_at":"2026-06-04T17:00:26Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.0->99.5)","saved_by":"editor","sha256":"717693f92389643d083f2279aaac3cb6be1fd074f81d62cb09e54acd3a9c22f5","version":11},{"created_at":"2026-06-04T05:55:55Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 92.1→91.0 (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 91.0 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"327a625f970617491d8f88fe616bcea7a1d62538fdf6ff673a94fd9ae698e140","version":10},{"created_at":"2026-06-04T04:58:31Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 43.4→92.1 (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 92.1 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"725fa9e348d83f9fa7152d2d188dffb6c21205ea54f47d38e55f1269ce335a3f","version":9},{"created_at":"2026-06-04T04:58:31Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"6ad0664b3e73ab7e61473fb53a5d980d274e2456d2eaa54b7317460f03a77428","version":8}]}