{"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-x1norl3j","versions":[{"created_at":"2026-06-04T14:57:03Z","element_count":70,"note":"polish: batch-improve-100 2026-06-04 (93.5->94.5)","saved_by":"editor","sha256":"62dad041d9de4a63948027b5a97d91f1e891e617ff980f28662c896b5aba0caa","version":11},{"created_at":"2026-06-04T05:55:13Z","element_count":72,"note":"GA diverse re-design 2026-06-04: 総合 93.5→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":"ef7c03f0945f12b8afcea0eeabcb6d4d0998f4bbd7c882a657300371d6fadc50","version":10},{"created_at":"2026-06-04T04:55:45Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 59.4→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":"de946320bb2fa495f4eedc68bde90b65935c10b1adc34a0cc6a2443e29d1c46b","version":9},{"created_at":"2026-06-04T04:55:45Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"9b585bd8a73073fdac3da17d39179e5138d56688bd1341d6f0034afd75d40aac","version":8}]}