Normally I wouldn't bother pointing this out in a game or on this forum but, you seem to be striving for accuracy in the British Legal System. You also want to try and portray the role of the solicitor correctly as well so taking all of that into account.
1) The correct advice, in my opinion, would have been to go No Comment at the start of the interview. Pre-interview disclosure from the officer was practically non-existent with no reason to see why she was linked to the murder. A better path would have been to do a statement at the start confirming the disclosure given so far, that it was inadequate for you to undertake your role, and that you were now advising your client to answer no comment. You could then wait for the case to develop, have a further consultation with the client and advise properly on what to say or do in interview. Note that it is important that you now advise the client to answer no comment instead of confirming the advice previously given. If you put it in the past tense you risk losing legal privilege.
2) The magistrates cannot grant bail if someone is charged with murder. The power was removed by s115(1) of the Coroners and Justice Act 2009. She would appear in the Magistrates Court, who would send the case to the Crown Court under the s51 procedure. She won't be invited to enter a plea as it is indictable only, though after the hearing the solicitor will need to complete a form so the court have an idea as to whether or not a guilty plea is indicated. She will then have a hearing in the Crown Court within 7 days, though in my area normally 3 days, where she can enter a plea and apply for bail. The Magistrates should also confirm the custody time limit (how long you can be on remand prior to trial) which is 182 days for murder. They would need to give the date it should end and not just the time period.
