{"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-9i9r8x38","versions":[{"created_at":"2026-06-10T22:52:48Z","element_count":66,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy72711600→quote24557037 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"6de92dd3b4978425b5542e336c0a64cdb15b84e5036e1ba741bdac965aa777f6","version":11},{"created_at":"2026-06-10T22:01:22Z","element_count":52,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"f1d320a4e10321d3b32b3286f0b27cc83f8861d4a6fa0f44f16c46b46908bd4e","version":5},{"created_at":"2026-06-10T16:08:51Z","element_count":73,"note":"5軸GA polish 60->95 by M5 (autonomous)","saved_by":"mcp","sha256":"dad07807ec17aa806b6f197569c09958c499dfec570f54df37c397d3ee4eaca1","version":2}]}