{"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-bbjl7c8s","versions":[{"created_at":"2026-06-04T17:00:21Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.5->99.6)","saved_by":"editor","sha256":"acc0a4bfd35fed2c121e243b2a0372757bca2324bd14160db951df3d0e7d859f","version":11},{"created_at":"2026-06-04T05:53:32Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.5→94.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"314327e060814464311211a7003fba6d1be260f8bf603b58675351a60d738389","version":10},{"created_at":"2026-06-04T04:57:01Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 48.8→94.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"a41999c3e479f11773ebcc2b009d230c499014c1867f9c55264a162881186357","version":9},{"created_at":"2026-06-04T04:57:01Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"4d9003e130b49c5ccb9f3032c536b0c4cdcf743135ade62adc301db29fc1e94c","version":8}]}