{"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-ml154ujw","versions":[{"created_at":"2026-06-04T17:01:17Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (91.0->95.2)","saved_by":"editor","sha256":"f59f974de0622bdbd4a9da75f4d3f6e7945dbdb1f446e673dfbe4b09334d8dbb","version":11},{"created_at":"2026-06-04T05:56:05Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 91.0→91.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.0 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"1f76f26313ab45cf457748aad7315b71ebbb6f52276fcca7dc4be37244589530","version":10},{"created_at":"2026-06-04T04:54:31Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 66.1→91.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 91.0 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"41b4566715516aa3d607aced8b1b5db6988bfb53d3ffb5291997dc5c89b4f6a9","version":9},{"created_at":"2026-06-04T04:54:31Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0b7cdd598afc8b5e6518121fb8e90e0ef8440fe53aa7cb5ea2f16e36cc5b9c8c","version":8}]}