{"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-3ermvt1f","versions":[{"created_at":"2026-06-10T22:52:47Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy73729440→quote24058999 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"8626356096cecbc44d03077f1f8394420744db025d956534ec7543fd764a75b9","version":12},{"created_at":"2026-06-10T22:01:20Z","element_count":54,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"82c6b9fcdf2293a08ef439fd8ccf2c2432ce79f62b3f240a5403fe2913d045f9","version":6},{"created_at":"2026-06-10T16:08:55Z","element_count":85,"note":"5軸GA polish 54->97 by M5 (autonomous)","saved_by":"mcp","sha256":"ddd7f232de9870dfaf7ef48f33a6068fea2eb9825ef258ccfd418f236eb5b5fb","version":3}]}