elitan rips out Supabase, rebuilds the plumbing from scratch

elitan has pulled out Supabase - the all-in-one hosted service that Mike had been using for both user logins and database access - and replaced it with two separate pieces the fork now owns directly. Logins now run through Better Auth, an open-source authentication library, while database queries go through Kysely, a typed query builder that talks to Postgres directly.

The motivation is consolidation and control: rather than leaning on a bundled third-party stack, the fork owns its auth and data layers outright. Two quick follow-up commits cleaning up naming conventions suggest elitan was settling the new shape in real time. The whole thing merged within ten minutes of opening, which has the fingerprint of a maintainer landing work they'd already been living with locally.