docs: Update architecture for supabase

test: Add tests for auth workflow

app/middleware/auth.ts

@@ -1,10 +1,7 @@
+import { checkAuthRedirect } from '~/utils/auth'
+
 export default defineNuxtRouteMiddleware((to) => {
   const user = useSupabaseUser()
-
-  const publicRoutes = ['/', '/login', '/signup', '/auth/callback']
-  if (publicRoutes.includes(to.path)) return
-
-  if (!user.value) {
-    return navigateTo('/')
-  }
+  const redirect = checkAuthRedirect(user.value, to.path)
+  if (redirect) return navigateTo(redirect)
 })