{"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-2-5yfiaqhw","versions":[{"created_at":"2026-06-04T17:00:54Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (91.6->95.9)","saved_by":"editor","sha256":"d40c7b7198fe7584ce5b5a6aeefb58b7cb1d1b87a476274370aa695722d8c670","version":11},{"created_at":"2026-06-04T05:56:00Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 91.6→91.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.6 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"e4da20677f5bce46088fcfe704fafdebd6166de23f30a48a75ae195034668ea6","version":10},{"created_at":"2026-06-04T04:54:27Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 66.3→91.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.6 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"69e478b6735d2e58da205aec362e6390162d22fa116e9adb2f9445d6620a718e","version":9},{"created_at":"2026-06-04T04:54:27Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f23a1699eeac05739d0d67136a3359bdec90b31377c02736444326651346bb1e","version":8}]}