{"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-g3ldk-2dugo00o","versions":[{"created_at":"2026-06-04T05:50:10Z","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":"15a079350a57dd1ff358981a1a2cbbf0b595378fc77d0110df4086cbad584523","version":4},{"created_at":"2026-06-04T04:57:26Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 47.0→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":"bb39a673f33c6ffd242daa89af7138d8f11167c201d5001ed1b78a6e67c61a73","version":3},{"created_at":"2026-06-04T04:57:26Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7e4aa19e0d669bc250e510013feb6d449533ebbfa5ff7f71d6be3551319bf1d1","version":2}]}