{"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-g1-lkhia6ud","versions":[{"created_at":"2026-06-04T05:51:03Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.2→99.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.2 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"bd9bdb3f51c6a935246cc16e5dbeeb803b15707b55e9edf0d55ddc777e037454","version":4},{"created_at":"2026-06-04T04:55:16Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 62.4→99.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.2 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"f35c08d5b130af4c9089ff35dbbd943bcd36c5aeaeb950d76a0ac618c76652d5","version":3},{"created_at":"2026-06-04T04:55:16Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e710b3a881a1bd60288d5a92e1f6aab8717815257e89b40613006bb18ad7788c","version":2}]}