{"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-7912k1vo","versions":[{"created_at":"2026-06-04T17:00:53Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.4->99.5)","saved_by":"editor","sha256":"0079120e1034943fddff7a58d065d45c0ddcde73db4863d9fe64b2efc82fce4f","version":11},{"created_at":"2026-06-04T05:54:51Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.6→92.4 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"553dbd7e4f553f4f7a1fd8f09e58a0133ecb92dcaef57f0a01f909a096be5960","version":10},{"created_at":"2026-06-04T04:55:47Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 59.3→93.6 (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 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"803f51b7b83c41dedf591f575de13745e573776dba1bc7e24f1f44bec1bfbd2e","version":9},{"created_at":"2026-06-04T04:55:47Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d7e0e09f84e92c3ba064c8443c8d03709f3c0110fd547c9e7377ffda320f4dae","version":8}]}