{"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-4qxq8ypz","versions":[{"created_at":"2026-06-04T17:01:20Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->98.9)","saved_by":"editor","sha256":"89b3837a960ac9eb4c32bdc8ab8e41c45ade99d68a4aa5e557cd341935c10678","version":11},{"created_at":"2026-06-04T05:55:08Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.5→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":"6cdc79983bfbd01d0f3b0ac02df7e490da7630a9232970a12898812065158cdc","version":10},{"created_at":"2026-06-04T04:52:50Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 74.1→93.5 (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 93.5 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"70986c6b9f9453d604f9207bf4593b74796ca552f62b7189ecdcd526632d7b9f","version":9},{"created_at":"2026-06-04T04:52:50Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a8734ebd144fc7f6d19092f1998c856a7bf1b55174972e91b002c62c7af78118","version":8}]}