fix(sora): 修复流式重写与计费问题

backend/internal/repository/sora_account_repo.go

@@ -76,7 +76,7 @@ func (r *soraAccountRepository) GetByAccountID(ctx context.Context, accountID in
 	if err != nil {
 		return nil, err
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	if !rows.Next() {
 		return nil, nil // 记录不存在