{"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-dn8j7z90","versions":[{"created_at":"2026-06-04T05:51:41Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.9→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":"b509ddfbf4d112eea97277adfeb4ad06f713ad3625841db193e4b83569460c59","version":10},{"created_at":"2026-06-04T04:52:57Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 73.3→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":"527f7fbdff828af0f5003cd130c3a9743e4e92647b5799d69cba96ef12cb580b","version":9},{"created_at":"2026-06-04T04:52:57Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"bd82a4b5b31b0583760f5321b0fc9f83be74d38e46256447ceadf42167caa747","version":8}]}