{"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-g0-m85v993n","versions":[{"created_at":"2026-06-04T05:50:45Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→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":"489d317814ff97a8f121de18289700a29a4e6e5653c25df3029f2baf94dd0b92","version":4},{"created_at":"2026-06-04T04:54:19Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 66.6→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":"c00dce7dd270d40bcbc29341471904dda1660d4b7367705628a8fa8bb0a18640","version":3},{"created_at":"2026-06-04T04:54:19Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4f1f46cb940dadcfaf794f413ff86d69d4ef46a461f422d526668244c4e8fbc0","version":2}]}