{"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-kigumicltbim-491zh6e2","versions":[{"created_at":"2026-06-04T07:22:16Z","element_count":70,"note":"GA polish 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":"0206066548648ebbc76e051f6da34e49e9bf64d4063cfd418dc6971ec501118b","version":5},{"created_at":"2026-06-04T05:52:25Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"f3588b424d325b7eaca2b317b55e4c37802dda7e1f4ea833210f9c91410322d5","version":4},{"created_at":"2026-06-04T04:58:42Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 41.5→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":"61f2b9b470181f49f74bcd142087cbdb0902698d674b7bb918e22e5a942c04b5","version":3},{"created_at":"2026-06-04T04:58:42Z","element_count":504,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"77d4f96fec46307b1d067276391af5e95ce54d770d0e62faa69db384655f34b1","version":2}]}