{"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-yr22u069","versions":[{"created_at":"2026-06-04T16:59:22Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (93.6->97.9)","saved_by":"editor","sha256":"295663638133ff69c8b26ef3c7168ade3b09d532cbc63997ea0b8efd5bcd0314","version":11},{"created_at":"2026-06-04T05:55:05Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"9003136019b12900e5f89dafe9cb4d5d6bbcbdff61a7fdd530d23ebbdbdd5135","version":10},{"created_at":"2026-06-04T04:58:29Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 43.5→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4c4e28a8fc510286c2b2c9e24faf1b2ed57b6e264b38cb8f141181e3f7709b9f","version":9},{"created_at":"2026-06-04T04:58:29Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"05d1dbe4dabd4ffe7f525f7c8edaad26b8917b344b1b42085b1af4cf9d0b54c2","version":8}]}