{"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-x8hi3wdp","versions":[{"created_at":"2026-06-04T05:50:29Z","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":"d6e8b4b5efe78bc324dd5d25f22780716450191bb987e0df434d9dc75e61996f","version":10},{"created_at":"2026-06-04T04:57:13Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 47.8→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":"7c387114d7e2f2fc1c520882ed97d4b33c6e4474f5e6c0b47dc643d874b186e4","version":9},{"created_at":"2026-06-04T04:57:13Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5fec49af04b6731baef8a1eb25c52d122007921e5a088982d633df670256ea52","version":8}]}