{"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-ny1gh33u","versions":[{"created_at":"2026-06-04T17:01:27Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.7->98.9)","saved_by":"editor","sha256":"893885df5bf2c06c99774a679c18c26af4e4cf7e0aa75e66020fa324e58543aa","version":12},{"created_at":"2026-06-04T07:22:26Z","element_count":70,"note":"GA polish 2026-06-04: 総合 92.5→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"eb5dffbc74d59a791e8eac4abcb5b233ade58334c2a0240fa21748fbaff9cbaa","version":11},{"created_at":"2026-06-04T05:54:00Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 93.7→92.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.5 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"cedb7122d15db1c6a6a1e1145f95f39ccd6e763b5444e199d8ab0c482e5de3f0","version":10},{"created_at":"2026-06-04T04:55:05Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 63.3→93.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.7 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"a8341e4eb67fd547762ac8c8d831a96fb13bc1b4af7a7af248d616b8842bc7ab","version":9},{"created_at":"2026-06-04T04:55:05Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d46f50bfd0e7c17a827f73ed1f4053c625df755935457a442ec427b59204d7f9","version":8}]}