{"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-fm1ja13v","versions":[{"created_at":"2026-06-04T16:59:25Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (91.6->95.9)","saved_by":"editor","sha256":"cc24087d10b840ff75b50f325f2fce78142ba74bd1816be18fbeb00b84f466ff","version":11},{"created_at":"2026-06-04T05:56:16Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 90.3→91.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.6 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"53e59172bbe1b8c0bac6a11e8f8dc623150e11c7048844fbfff0ab91b300f50e","version":10},{"created_at":"2026-06-04T04:53:10Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 71.7→90.3 (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 90.3 (美 92 環 95 楽 100))","saved_by":"editor","sha256":"09278ea611c8e81aa93f6e597f9471dfe2a5eb8054f4e8419ecd8fd880ed3406","version":9},{"created_at":"2026-06-04T04:53:10Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"50702781d60654e1e716794237ea424871945184c75d378b05cd120b833daca6","version":8}]}