{"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-2-194brh2e","versions":[{"created_at":"2026-06-04T16:59:36Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (91.6->95.9)","saved_by":"editor","sha256":"d48490c64a2522437f814e93563a757cc99a73d53224d48b8d90ac8ccf508fbb","version":11},{"created_at":"2026-06-04T05:55:59Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 91.6→91.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.6 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"34a072462f1580782543cc98adf701ff14b972880d50f82a7167f4f4fca4470b","version":10},{"created_at":"2026-06-04T04:57:54Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 45.8→91.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.6 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"9f2419af8d561be353fea1ed73ba5b07ba8f86f7c7b0958e99610afb226964ef","version":9},{"created_at":"2026-06-04T04:57:54Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d3cb0bf46c3f29d3f94c99ee83617a834b9cc08fdb111a70a2a871191afa0b9a","version":8}]}