{"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-rj3ik61u","versions":[{"created_at":"2026-06-10T22:52:46Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy87413760→quote24371566 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"c7e69ca99209ca6faf7ba0ebac3b44c91e3630ca24bc6e11ee2937d42ab70202","version":11},{"created_at":"2026-06-10T16:08:50Z","element_count":72,"note":"5軸GA polish 56->95 by M5 (autonomous)","saved_by":"mcp","sha256":"3a326fc473a4c3447354cc6ab4c6f1594afb42414b324eefea8ad5cdce3cabd0","version":3}]}