{"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-fngjneye","versions":[{"created_at":"2026-06-16T06:24:22Z","element_count":83,"note":"5軸GA polish 39->93 by M5 (autonomous)","saved_by":"mcp","sha256":"e8b702b4fd57340443c35a811f3f21dbf2ccf3cc37cae9bc2cd00574c8ac09b3","version":3},{"created_at":"2026-06-16T06:16:59Z","element_count":119,"note":"loop3: 設計時延床 70.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"14c811ee4b0a5f7fcb8cafe2a88c4f667f9bfbf8ff5836e01895b65dadaf3446","version":2},{"created_at":"2026-06-16T06:16:57Z","element_count":119,"note":"言葉から生成: LDK+主寝室+子供室2+浴室+収納","saved_by":"mcp:create","sha256":"","version":1}]}