{"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-c6zh3dp2","versions":[{"created_at":"2026-06-04T17:01:01Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (92.0->96.3)","saved_by":"editor","sha256":"df103822fc4058c72da2aa805d92e9cd339b69afe3f14c7bcc1ac0e3c3741958","version":5},{"created_at":"2026-06-04T05:55:55Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.0→92.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.0 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"26e7e7c068c842f6858c360074ea828e140e1e13ed58e5bae4c8c0d705a19de3","version":4},{"created_at":"2026-06-04T04:57:57Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 45.6→92.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.0 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"45979615dffe27e64c0dedd2b571725a4363a6a67d2edcb4317587757eacef74","version":3},{"created_at":"2026-06-04T04:57:57Z","element_count":52,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"57002c1556c48de328da5992c0d5fa07ae81324724ac028f7e3288de081999e2","version":2}]}