noob mastodon API questions...
a) if I want to download a complete thread tree, I can start with a single status, get its context https://docs.joinmastodon.org/entities/Context/, then walk that (linear) tree and get the context of each of these statuses, filter out duplicates, until I get to a fixed point?
b) in order to get a DM status, I need to be able to reach it through a context/notification, because I can't fetch it straight using its ID, since that ID is not stored on my instance.