{"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-66fgbhfb","versions":[{"created_at":"2026-06-04T05:50:41Z","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":"df42b7d99ae1d8211360f2bb48c4ada446f88fcf833a7ca9a86089a69f2258f1","version":10},{"created_at":"2026-06-04T04:53:59Z","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":"1efa744057daff7a56787529b94fd39c8869e14853d634beb733ed162a6cfe9f","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":"d8bec3241c3dc5c5eb1a3181ddb29e105bb50688f106d639ac874a00c54aea27","version":8}]}