{"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-mizu-f6o9skvn","versions":[{"created_at":"2026-06-04T17:01:36Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"064e630ad8a542944eb857ff2e1c0e3a75c493d1fc145deef0b89def972bcb61","version":11},{"created_at":"2026-06-04T05:53:24Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"43e760f3cabf230f221312d13fc7670b5b3c07a5bbd13c6c0290ce561eeb8cc8","version":10},{"created_at":"2026-06-04T04:56:30Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 54.2→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"453e41f0b12020b29021fa59791f08ed29e3685a5f7aa8905ac538aec44f5c3f","version":9},{"created_at":"2026-06-04T04:56:30Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7ae74399068557a88f44bfda2b3ca7a8c745581fbb03811492f3512783aa3015","version":8}]}