{"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-b7xhnzbg","versions":[{"created_at":"2026-06-04T16:59:54Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (92.4->97.6)","saved_by":"editor","sha256":"3c3b7182002f9bbfb0a7ce625dfc6091e6b228f2e215e3dffaface0d6dbbb88f","version":11},{"created_at":"2026-06-04T05:55:47Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.4→92.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.4 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"2a721dc2c9e924b1576e3bb887ba021a1e69f17837cf4492a6579d210a988497","version":10},{"created_at":"2026-06-04T04:54:13Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 67.0→92.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.4 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"3601d14547df8c8ef5a403599cefaabe63a11501d7a7b8f29c4957a7cb46f6e7","version":9},{"created_at":"2026-06-04T04:54:13Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a76f442c00052ad98a0ff7aebf88acf8d8c3d3fd6966eccb90dd74009facb4d3","version":8}]}