{"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-gm0m0rfg","versions":[{"created_at":"2026-06-04T05:54:53Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→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":"1823ed4fc133a3601630dd6d1171b274996e21561be4d3a512b6c0f45bcc5e38","version":10},{"created_at":"2026-06-04T04:59:30Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 35.4→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"3b6e7f611d377684b89af286b3fd751c0b67a2e18a788bf3df31eab75abf9176","version":9},{"created_at":"2026-06-04T04:59:29Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e66b5a03930a03eee7fb8f1522d4c2e39c2f0a629e06e74b583c347c450cdb79","version":8}]}