{"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-h1m5ev22","versions":[{"created_at":"2026-06-04T16:59:56Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.2->99.6)","saved_by":"editor","sha256":"7c8d1b5416285b44b52535387a2a9eb1d0333f9cfbd6358b28947edf402e4c01","version":11},{"created_at":"2026-06-04T05:55:50Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 92.3→91.2 (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 91.2 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"16ac8f745bd340a07a7bcbc28e87cbe3c0b86a5935952e7b43865fed3b52e490","version":10},{"created_at":"2026-06-04T04:57:23Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 47.2→92.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.3 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"b5d44d2d80634f924d95cfeb883492330eb0a25b1eb9c5fd8da6ad12b69d3693","version":9},{"created_at":"2026-06-04T04:57:23Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"98d493968301ad53645dd0f0371700945aaaad56fcb1de0210b10af78812a386","version":8}]}