Rebuild the hub on Bun: Elysia API, Better Auth, Drizzle, Next.js website

The hub becomes a Bun monorepo: apps/api (Elysia, Better Auth for accounts, roles, bans, proxy device
sign-in and JWT keys; tagline linking, presence and the console as before), packages/db (Drizzle; Postgres in
production, PGlite in development and tests), and the Next.js website from apps/web. Self-hostable with
docker compose; the website deploys to Vercel-style hosts, the API to any that runs Bun or containers. The
first version, in Go, is removed.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/console/actions.ts

@@ -38,8 +38,7 @@ export async function unban(_: ActionState, form: FormData): Promise<ActionState
 export async function setRole(_: ActionState, form: FormData): Promise<ActionState> {
   return onPerson(form, async (id) => {
     const role = roles.find((r) => r === field(form, "role")) ?? "user";
-    // The API's schema builds its union from an array, which its type reads as never; the value is checked above.
-    const { person } = unwrap(await api.console.people({ id }).role.post({ role: role as never }));
+    const { person } = unwrap(await api.console.people({ id }).role.post({ role }));
     return `Role set to ${person.role}.`;
   });
 }