{"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-n24ygub1","versions":[{"created_at":"2026-06-04T17:01:31Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.2->99.4)","saved_by":"editor","sha256":"b932ef3eecb00e9e85ee65775e2c95b8f4ab0605a4adf23e082adc558dfc085e","version":6},{"created_at":"2026-06-04T14:56:46Z","element_count":55,"note":"polish: batch-improve-100 2026-06-04 (91.1->91.2)","saved_by":"editor","sha256":"79cffeeceef877f8248c78a48d15a93dedf2495ae6dc86f4bdb70e05553ce9a5","version":5},{"created_at":"2026-06-04T05:55:25Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.2→91.1 (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 91.1 (美 96 環 100 楽 91))","saved_by":"editor","sha256":"2f86f0f145bf92bbb6228cfed5fcbe7615c81a2ffff0da4ddb108151cffd42ba","version":4},{"created_at":"2026-06-04T04:57:43Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 46.2→93.2 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.2 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"72036181b57221dc84de051529940ff984521bdd82005aee950551e8add8cb3f","version":3},{"created_at":"2026-06-04T04:57:43Z","element_count":52,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"26ded036d5613da6bd4310e2c15cc32347482ed141b192e8fc267ce1f2ee27ac","version":2}]}