{"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-haikou-net-gnt1r595","versions":[{"created_at":"2026-06-04T16:59:50Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"7e6a84591ee1a87ea65a3aaa30dbdf6177ec71f70215a150d0b24150a7bf1f3d","version":5},{"created_at":"2026-06-04T05:52:26Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"43e760f3cabf230f221312d13fc7670b5b3c07a5bbd13c6c0290ce561eeb8cc8","version":4},{"created_at":"2026-06-04T04:59:34Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 34.7→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"37f337aeb4ab1a67a47c4ae4e4b69a72432cc29f33104373a89644d4389def7f","version":3},{"created_at":"2026-06-04T04:59:34Z","element_count":11,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"436870a49ef4c272979384f044243af3c0c43b0a8658b0ae69987ddb0e4421de","version":2}]}