{"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-n7omoykv","versions":[{"created_at":"2026-06-04T07:22:04Z","element_count":98,"note":"GA polish 2026-06-04: 総合 98.0→99.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"0f8aa17ebf63029adf57a20c1212e299b89863b10d738e3ba650578832638fc9","version":11},{"created_at":"2026-06-04T05:51:41Z","element_count":97,"note":"GA diverse re-design 2026-06-04: 総合 97.9→98.0 (中庭ロの字・吹抜 ピアノ室 PV 天窓 / 適応度 98.0 (美 100 環 90 楽 100))","saved_by":"editor","sha256":"d5c4701388f565cf22b34023b4014aca9a232d03281e3cc3de3007c78a62c501","version":10},{"created_at":"2026-06-04T04:57:46Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 46.1→97.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.9 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"904c35c305da4bbc1076ee1df8bd291b88b34c2ce8488e3f6615d6b0777361b6","version":9},{"created_at":"2026-06-04T04:57:46Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a69697f8cea65472d9ca1324702f69e7b01f56a2f900a9a1ddd1293bd9524c01","version":8}]}