{"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-cnsalysz","versions":[{"created_at":"2026-06-11T00:14:20Z","element_count":83,"note":"5軸GA polish 61->98 by M5 (autonomous)","saved_by":"mcp","sha256":"32b25fd619fe3762f0b308ca819e5e796f0c9bc483170437174f4e5cbccf5f62","version":13},{"created_at":"2026-06-10T23:10:02Z","element_count":50,"note":"legacy fix: rooms設備語除去 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"acf846e4a75d6fd7901ad9f753aa7f168facb2b80b8f149f5242d640aa8aa45a","version":7}]}