{"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-2x34ext2","versions":[{"created_at":"2026-06-04T16:59:26Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (91.6->100.0)","saved_by":"editor","sha256":"11454d40faa9d2f027961085268750fe0c2bcf88decb641778f202a2a0bb69d7","version":11},{"created_at":"2026-06-04T05:53:52Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.8→91.6 (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 91.6 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"caf512d9d7a2f4c85d62985c5208b1af5aaf19d5d32557529a291defbf4633af","version":10},{"created_at":"2026-06-04T04:56:06Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 57.6→93.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"0291e69698970b4396dfb4f0eb440dcceb05f0b2e788785cff3e5407d41b4e18","version":9},{"created_at":"2026-06-04T04:56:06Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d68efc4244c64c8bfef1ae9a9ac80efc5fbc26144114652f71570a930d5b3251","version":8}]}