{"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-0jjkv3ff","versions":[{"created_at":"2026-06-10T22:56:23Z","element_count":85,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy73729440→quote23910325 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"fcd75d85fe9e1640cc1c5daaecfcdbe87213cd18bcb51e3e73a71875d14f4c0e","version":11},{"created_at":"2026-06-10T22:01:49Z","element_count":54,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"8e8451752c9dea70cb6cc76175c78ba2f32da3562c060566f26904397b388fef","version":5},{"created_at":"2026-06-10T18:46:38Z","element_count":83,"note":"5軸GA polish 61->97 by M5 (autonomous)","saved_by":"mcp","sha256":"b0b5065ca2d7f69d9773ac54ade33efb2a3a7f75d9b12f6824771284cb2058bf","version":3}]}