{"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-2-s28frtlg","versions":[{"created_at":"2026-06-04T16:59:31Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"80242e2d0d7aacc18c78fa7f2ea27b86325127f1ce6681fb2bc60c59f2f3ca6d","version":11},{"created_at":"2026-06-04T05:53:21Z","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":"4025115d4f75a419a54fba8e0e1e36f13574bf25295fd8156579616b2c0d3b6f","version":10},{"created_at":"2026-06-04T04:56:41Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 51.8→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":"9e6a737c978ac9fd8cc051d882094f2af4519abbee8c65b94ed3a39c5012eb19","version":9},{"created_at":"2026-06-04T04:56:41Z","element_count":17,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"702d84b755842ea4b8a07874d1c78f566aecac9a1b70f4035d8f37a439cb964a","version":8}]}