{"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-3mtsd7za","versions":[{"created_at":"2026-06-04T05:50:34Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"08b0e154b34899ba5fe891d853ca2f9cacd8650c8a580df30bfb755f6fada1e5","version":10},{"created_at":"2026-06-04T04:53:58Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 68.0→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"16c2d50c3b0845ba7737ced1caccfaf9656686beeee0947e42641954b5e3663e","version":9},{"created_at":"2026-06-04T04:53:58Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"8a10ad92927a1261916e71bcfa45ad853eed79689f8d36c8acb1ef3c86688727","version":8}]}