{"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-g1-2w3qnxcb","versions":[{"created_at":"2026-06-04T17:00:19Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"80242e2d0d7aacc18c78fa7f2ea27b86325127f1ce6681fb2bc60c59f2f3ca6d","version":5},{"created_at":"2026-06-04T05:52:31Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"faecb7707fbfa274a16c696adae99bd5f799eab7c092786772194f52d942a608","version":4},{"created_at":"2026-06-04T04:56:01Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 58.1→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"c7aa139e2ce6b9c9f74349d422d02310316554670742d55cc4dbedf86c9e0528","version":3},{"created_at":"2026-06-04T04:56:01Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4ab4fbb204164ae93a73b23dc5e1735cfb8f28c7fc33a2b35bb416540211a7f9","version":2}]}