{"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-g2ldk-cr1sppoc","versions":[{"created_at":"2026-06-04T17:00:58Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"b61e311cb7f5d7c8e4474298d84d746b37b46a22f14d165b83d70e63dc35f828","version":5},{"created_at":"2026-06-04T05:52:29Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"faecb7707fbfa274a16c696adae99bd5f799eab7c092786772194f52d942a608","version":4},{"created_at":"2026-06-04T04:55:25Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 61.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b4f94a208a1c5bc658e34a5f99b2a06fe5764a0931594abe97bd4b12503cfde5","version":3},{"created_at":"2026-06-04T04:55:25Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2aa7f477054990dc5c4106666a41f7a965efe50aa1a98e756e478bffc3742e4f","version":2}]}