{"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-atkkml71","versions":[{"created_at":"2026-06-04T07:22:10Z","element_count":98,"note":"GA polish 2026-06-04: 総合 97.0→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":"9cee7c03a0dd7b4e36f3a79831abc32d1f4fd60857186a3a65deffd02549db41","version":11},{"created_at":"2026-06-04T05:50:34Z","element_count":101,"note":"GA diverse re-design 2026-06-04: 総合 99.5→97.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 97.0 (美 92 環 100 楽 100))","saved_by":"editor","sha256":"9b14d9b20bf1656e255622a898d436a3f2c9b3d94caf3a38c3edcdacc5e5f806","version":10},{"created_at":"2026-06-04T04:57:14Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 47.8→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":"9c2dbb288eacbff468d1b9c0751700e7809179b29cc39bc240dee6a34173f23b","version":9},{"created_at":"2026-06-04T04:57:14Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0486628efbc228ad1d710ec8ff58fa34a4146055755472d84d4ee250e5c5b557","version":8}]}