{"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-gnvn0lpa","versions":[{"created_at":"2026-06-04T05:51:04Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.2→99.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.2 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"bad6bc1fa79a3fe10dc21f7ee7ce40e670a1dd67273973e98198f20174144b01","version":10},{"created_at":"2026-06-04T04:52:54Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 73.6→99.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.2 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"853d32031b498ffe68634f4119a13369eb6e759a4fe0e3f502e90746abe490cc","version":9},{"created_at":"2026-06-04T04:52:54Z","element_count":66,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2fc6ea4c8bdba875841bd543a6f1317b1c12c50173f400972b065a83f6d8d243","version":8}]}