Add auth starter

ui/pages/auth/signin.vue

@@ -0,0 +1,17 @@
+<template>
+  <div>
+    <!-- This page will automatically redirect to the default provider -->
+  </div>
+</template>
+
+<script setup lang="ts">
+import { onMounted } from 'vue';
+import { useAuth } from '#imports';
+
+const { signIn } = useAuth();
+
+// Automatically redirect to the default provider when the page loads
+onMounted(() => {
+  signIn('default');
+});
+</script>