{"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-b8o5x0z5","versions":[{"created_at":"2026-06-04T05:51:26Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 98.4→98.4 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 98.4 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"f50acbd5edfc3c439191bc58fc3bf2dfe0fef3c9f8f36dd0a78d88843b6b6343","version":10},{"created_at":"2026-06-04T04:56:50Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 50.0→98.4 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 98.4 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"afac361bb04a4c6aac5988b9446ff74bb30c90a25d016630cd33025ff3724a95","version":9},{"created_at":"2026-06-04T04:56:50Z","element_count":51,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"16f63c5fe9ee7d58ead1b6d002e205c4784330d7554d85ce695a84c50d2518d8","version":8}]}