{"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-kpe5jlos","versions":[{"created_at":"2026-06-10T22:52:10Z","element_count":65,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy84109586→quote25684102 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"a386bdc2c0c04bae92e84bf1699c8c30dc119065b75a25da22378cc0d93e408f","version":25},{"created_at":"2026-06-10T13:15:10Z","element_count":65,"note":"backfill: 延床=居室床スラブ実面積118.8㎡(基礎/屋外/ロフト除外)。設備数量/コスト過大の是正","saved_by":"mcp","sha256":"a1ebb15ebb7d72ae46b80bc091a081cb16a1cec693a2dd09f9d0a858b9424fd7","version":10},{"created_at":"2026-06-10T09:21:34Z","element_count":89,"note":"5軸GA polish 61->98 by M5 (autonomous)","saved_by":"mcp","sha256":"33a71db67abc813e294c10a24ea410ee72b4c78905f088be489bfc63e1417be6","version":2}]}