{"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-mqzj46gp","versions":[{"created_at":"2026-06-04T05:51:20Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.6→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":"810af5e386324bb73dcfc69553bcd2106f29ac3a51639735ad6cd31c2e2acec9","version":10},{"created_at":"2026-06-04T04:58:10Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.2→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":"cf671c9bdd852acaa0ccbd2a936a72f9f6f71bbc691bb0c4ebb37bbb5eaeba2c","version":9},{"created_at":"2026-06-04T04:58:10Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1786a2524eed4f61cb596233efef83ce1b512edd33e8213ad3ce2c42b24388bf","version":8}]}