{"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-g5-wjkk2u6n","versions":[{"created_at":"2026-06-04T16:59:31Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.6->98.5)","saved_by":"editor","sha256":"f1b210351a49ee2694f67a659ffad9d4607b2f9c5545d9c76225878f94cc6150","version":5},{"created_at":"2026-06-04T05:55:35Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.8→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"78b4b1ed2c4ff9d23f8a6acdfc5810a07426916d23bead2321c46b8a0a884b10","version":4},{"created_at":"2026-06-04T04:56:12Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 57.0→92.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.8 (美 94 環 100 楽 100))","saved_by":"editor","sha256":"27f80c205d623476287cf3df1483f5d570d47575b5dc593ad16e9ba9f1f02bfb","version":3},{"created_at":"2026-06-04T04:56:12Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"af4e85ba962ca52628495a9ce3da26a075cd61f74261fefa507b199241471687","version":2}]}