First working build

I built the first version of Crate in three days. It reads a folder of Ableton Live sets with read-only access and lays the projects out on a board by phase, with drag and drop between columns. New sets land in an inbox and get sorted through a triage queue, with swipe triage on a phone. I added Google and Apple sign-in, cloud sync behind a paid Pro plan, a stats page, and a first landing page.