Some questions about migrating a PRAW moderation bot to Devvit

After the admin message that got sent out a while back, our mod team has been going back and forth with how to handle the impending changes, and I seem to have drawn the short straw to become the Contact. Before I move forward with the registration steps, there's a couple of things I'd like to know for sure, lest I break something.

Terminology clarification: Is a PRAW moderation bot that accesses our private database backend a "Data API App" - it's not an app (yet), but it looks like we're supposed to register the "automated account"? Or is that something different?

If "yes" to above, does registering the act impact the existing bot's functionality. If I register it and, as a result, our mod bot breaks before we've even started looking into migration, I'm going to become remarkably unpopular with the rest of the mod team.

Time Frame: Is there a cutoff for when the bot will stop working ("In order to maintain functionality of your script, app, or bot, it will eventually need to be migrated to the Reddit Developer Platform") - since it looks like many of our needed functions aren't available or still experimental, we're not even sure HOW we can migrate it, yet.