{"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-eacpuz2v","versions":[{"created_at":"2026-06-10T22:59:02Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy87379776→quote24212747 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"8e179585a3d624255e3643032f35b2d015ca8ee7b08e1169db1ccf5ec4eded38","version":10},{"created_at":"2026-06-10T22:02:17Z","element_count":50,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"00819e54c0de8c982b03ad20688534e1cdc2863a5d88d46f2c56a99435ecdd0f","version":4},{"created_at":"2026-06-10T20:22:38Z","element_count":84,"note":"5軸GA polish 58->98 by M5 (autonomous)","saved_by":"mcp","sha256":"616ce46ab2b440639c641c00628c1d94831c23d0a13a66cef860669075016cdd","version":2}]}