{"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-x9txx9o3","versions":[{"created_at":"2026-06-04T17:01:14Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (93.5->93.6)","saved_by":"editor","sha256":"6c316d4a665c626d841730876d26ea5728f8e6d0bd4035f8cfcbac59afbd522a","version":11},{"created_at":"2026-06-04T05:55:15Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.5→93.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"3b7a1dc89f894ab40de7945c5acf5d4b012afeee9201c92d2dbd000fba57939a","version":10},{"created_at":"2026-06-04T04:59:02Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 38.6→93.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"23c498b94aa354497292b4f33768ec36abfa0e7ab749f869d1a892983e57b1c0","version":9},{"created_at":"2026-06-04T04:59:02Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e3d622b859c91a560eeab39ea18a29ff13334cde2dded56ea79a2acf53f95e95","version":8}]}