{"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-g3-9ju72le3","versions":[{"created_at":"2026-06-04T16:59:18Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (96.5->97.2)","saved_by":"editor","sha256":"8397d7dab95a8f3658a717a40aa86e11996e89cab1ebc7532fe1b78d541122e1","version":5},{"created_at":"2026-06-04T05:51:09Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 99.0→96.5 (総2階(箱)・吹抜 ピアノ室 PV 雨水 南面サンルーム / 適応度 96.5 (美 96 環 100 楽 91))","saved_by":"editor","sha256":"d4c805c732c244054ffd3da72852e3acf3922d8e62a21f0ef106c6b0c0ca3ff8","version":4},{"created_at":"2026-06-04T04:57:49Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.9→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"141caed54f871795b2d45bf8fd54ee7a933c54cc8e5f80bfd45cfc2381feed96","version":3},{"created_at":"2026-06-04T04:57:49Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"28f3cddae0267fe408167525c947d338766e1b30c02722586cd89c1b717bff0a","version":2}]}