{"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-a3x833vk","versions":[{"created_at":"2026-06-04T05:52:06Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 97.0→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"c94f70a76bd1c2a2fdba2f762c78cd1d0fd2ed82000194fe0e07ee46d6df498a","version":10},{"created_at":"2026-06-04T04:54:03Z","element_count":101,"note":"GA batch-improve 2026-06-04: 総合 67.8→97.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.0 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"b1e03c2816532fcc85f442ff30ba7323a9b07ef51b9b4f0e304dbfcc1c07bd0f","version":9},{"created_at":"2026-06-04T04:54:03Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"55b0dec0e0af82a26e8e5bde6b2df8ac10145fecfa0a41722e529f7ad71a01f7","version":8}]}