{"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-2-unlx5ifx","versions":[{"created_at":"2026-06-04T17:00:42Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (96.0->97.0)","saved_by":"editor","sha256":"77f115eead9784d6ff61ee96626467ea5a76cd66bc78410aaf6bb2095bb5f2aa","version":12},{"created_at":"2026-06-04T14:57:01Z","element_count":72,"note":"polish: batch-improve-100 2026-06-04 (95.8->96.0)","saved_by":"editor","sha256":"e37b61e028af2413c7f3a88e3f0718cbe1111abc14e595148e1d125a71937b9c","version":11},{"created_at":"2026-06-04T05:51:20Z","element_count":73,"note":"GA diverse re-design 2026-06-04: 総合 98.6→95.8 (総2階(箱)・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 95.8 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"2ab60f414bedd025258a6b2a13d85881f2d08beb8f87b21d6a45c0abd2d7d4e6","version":10},{"created_at":"2026-06-04T04:54:39Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.7→98.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"930b55b45f250479ffaee2c14e2b142c41dd4c6d6a0fe345970d280620c81570","version":9},{"created_at":"2026-06-04T04:54:39Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1b8a0358fb1a10c834ee60b82e0197e6bbe094d021beca116af0b0cecca3cb1f","version":8}]}