{"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-i49bnlyt","versions":[{"created_at":"2026-06-04T16:59:52Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"38ba2928aa11f1be34ed9d6358e20e5d354449f2d03c0bc7ea0f74428e02b478","version":11},{"created_at":"2026-06-04T05:54:57Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→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":"0f4f361b71f5a9e7b56210a6741d5aa5d7ed8ec6c909f4218315c0657ac1e642","version":10},{"created_at":"2026-06-04T04:58:56Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 38.8→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":"1ddbbd72d22d18516119be76f45b524782e08258b8e68fcef2dedc58f265ed4c","version":9},{"created_at":"2026-06-04T04:58:56Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ec8fd8a94b5528fb60dfc5c5b4d8468215594c521549f4f09a0735b751b10e21","version":8}]}