{"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-scf41wez","versions":[{"created_at":"2026-06-10T22:59:38Z","element_count":63,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy53236569→quote20965218 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"ef445ae9a672e44110f4e1f50f7e59f86c0f450bb90b162c2f2591eea4369c49","version":9},{"created_at":"2026-06-10T20:38:17Z","element_count":85,"note":"5軸GA polish 56->94 by M5 (autonomous)","saved_by":"mcp","sha256":"4d9edf6d25b79000f1003b7a8344ff4cd384cd8b6f2e2f13d94068d0c1f09015","version":2}]}