If a task is a quest link, extract quest id, call quest API to check if quest is turned in, mark todo item as done.

https://warcraft.wiki.gg/wiki/QuestLink
https://warcraft.wiki.gg/wiki/API_IsQuestFlaggedCompleted

For simplicity of implementation, this could just be checked once on login (like "show warnings"), so you don't have to poll (or listen to quest turn in events).

Thanks!

Yo, right now I wasn't planning on adding automatic tracking of things in the addon, some people already suggested I do this for items in bags, or other stuff. But I feared that it might complexify the addon too much considering some other addons already do that very well, so I'm still thinking about it.

But seeing your com makes me rethink about it, about how to implement this feature without it being too complex. I don't guarantee anything but I'll definitely consider it in the near future 👍