{"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-om3tgklf","versions":[{"created_at":"2026-06-10T22:52:47Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy96334560→quote21425095 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"5c1ee1bdb8ed4ad7c5b68cb2d5493cdfc72c48b228ae5b77df18d5709f9472dd","version":11},{"created_at":"2026-06-10T16:09:01Z","element_count":71,"note":"5軸GA polish 61->96 by M5 (autonomous)","saved_by":"mcp","sha256":"fbf7e37fe3a62dd78b8a8900f10ed2d3fdd3e84e4e0dff92420a44d28463f8cd","version":3}]}