While it would probably take about an hour or so to initially compile, I think that the best course of action for providing a nearly futureproof solution is to make a categorized list of every magic item from the DMG and the APs. Separate the items into three categories: Consumable, Semi-permanent (Perm until last charge used), Permanent.
I know that the Admins want to prevent magic item spoiler lists, so I recommend doing this even for items that haven't appeared in any adventures. While this does add time to the initial workload, it makes it easier to maintain in the future; since it means that only AP-exclusive items would have to be added as they are released. If that still feels too spoilery, then only explicitly list those items that fit into the Consumable and Semi-permanent categories and state that anything that isn't listed in those categories is Permanent by default.