feat: implement auth system, passkeys, and user management

Add PostgreSQL and Redis integration for users and sessions
Implement password and WebAuthn passkey login flows
Add Docker stack, super-admin seeding, and protected routes

server/api/auth/logout.post.ts

@@ -0,0 +1,9 @@
+import { destroyUserSession } from '../../utils/session'
+
+export default defineEventHandler(async (event) => {
+  await destroyUserSession(event)
+
+  return {
+    ok: true
+  }
+})