{"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-5fg53kxx","versions":[{"created_at":"2026-06-04T16:59:48Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (90.6->95.7)","saved_by":"editor","sha256":"8bd7f63e0fba94298930de4261062f2a9bb814200f17665edd42082353205e3b","version":12},{"created_at":"2026-06-04T06:04:34Z","element_count":70,"note":"GA diverse final 2026-06-04: 総合 88.3→90.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 90.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"e12b68ed1e4f022e19a47ef349c714ca64f2279cb84f13349fb87ce2afc2c8b0","version":11},{"created_at":"2026-06-04T05:56:09Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 90.6→88.3 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 88.3 (美 96 環 97 楽 91))","saved_by":"editor","sha256":"bb8587fdb3f392e3103c828e4b36fc0e3e80febf37cd46af72cb957379594432","version":10},{"created_at":"2026-06-04T04:59:37Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 23.8→90.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 90.6 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"43cf2e80cf9cc1ad9073d388d60e5b0891a4095539cf426eba02564fcfc9e3ac","version":9},{"created_at":"2026-06-04T04:59:37Z","element_count":43,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"aa777c1749fdb42da9f24f7d7c760a4750c790dd061b4490ef57f3f6a6b599f2","version":8}]}