{"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-6gevp32o","versions":[{"created_at":"2026-06-10T22:59:18Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy87379776→quote24371566 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"fad056b89b1c68d847afcf89779dbc92354a1fe683cd0adfc4177d3933ef26d7","version":10},{"created_at":"2026-06-10T22:02:14Z","element_count":50,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"7d9f35bd46eaca99f6eb8a9cb993741df1aa8cb2138b67825d01724fe68ce846","version":4},{"created_at":"2026-06-10T20:38:17Z","element_count":85,"note":"5軸GA polish 54->98 by M5 (autonomous)","saved_by":"mcp","sha256":"a6c2e13b13f00277022026d91878448ff42561ef7f6a2742f17c64ecbe46164b","version":2}]}