{"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-5hf6p5nw","versions":[{"created_at":"2026-06-04T15:25:56Z","element_count":98,"note":"polish: batch-improve-100 2026-06-04 (90.1->99.5)","saved_by":"editor","sha256":"977fdc62af260c94f953dbfdf55da54991e3f444a0bd9ccb93c8332a10764008","version":6},{"created_at":"2026-06-04T15:24:59Z","element_count":98,"note":"polish: batch-improve-100 2026-06-04 (90.1->99.5)","saved_by":"editor","sha256":"977fdc62af260c94f953dbfdf55da54991e3f444a0bd9ccb93c8332a10764008","version":5},{"created_at":"2026-06-04T05:50:08Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.5→90.1 (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 90.1 (美 94 環 100 楽 91))","saved_by":"editor","sha256":"dacdf824d05272f14386052ec898834e69272204ae776e19097aa288ee7b5f73","version":4},{"created_at":"2026-06-04T04:55:00Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 63.9→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"0579236a6e61bda3004a83673bbe9c19f413fef0cbfa49b426319432ccbd4a40","version":3},{"created_at":"2026-06-04T04:55:00Z","element_count":44,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"7bbdae8d5accec66d9c01893261ed0fbd0572380108b8d5f479188ca6aa501d8","version":2}]}