{"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-eth1v0sn","versions":[{"created_at":"2026-06-04T17:00:22Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.2->97.8)","saved_by":"editor","sha256":"639bf66b5a27c6438a82ba430785f93477ff112144f4486448a30f21b67a5e2f","version":5},{"created_at":"2026-06-04T05:55:25Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.2→93.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6fc57dafece6c05e1ceb5a78fa7fab9d7d712377153c9118ef001d4eb5e75f8d","version":4},{"created_at":"2026-06-04T04:55:19Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 62.2→93.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"cb348216a2c0f252775bbaff1381e3e4b75126f8d5d0a7c61249c058e08f91ba","version":3},{"created_at":"2026-06-04T04:55:19Z","element_count":43,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"fe04a1f43fb987704d5454658bc0f70f443fcfedeaa8155fa8a6d6f36ba46970","version":2}]}