{"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-g4-icyaevam","versions":[{"created_at":"2026-06-04T17:00:36Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.1->99.2)","saved_by":"editor","sha256":"22e4f55928e10269050cf35ef647285ca1b07053d7be2f565181cd947646cbb1","version":5},{"created_at":"2026-06-04T05:53:42Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.1→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f1fa576a6849d2fd35bdad71ed79ffb27edd767e3a06f2d3e330127bb076b6e9","version":4},{"created_at":"2026-06-04T04:56:12Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 57.0→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6539bba5de98842b8a6b45693e2a6bac4da9fe724e892b098d56b54171ae9569","version":3},{"created_at":"2026-06-04T04:56:12Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"f6a4f8b7660eb9a05e7814d9246cc5ac40f0a5d06ed276faf4a10f4990dd1291","version":2}]}