trips) adding initial commit

src/routes/login/+page.svelte

@@ -0,0 +1,22 @@
+<script lang="ts">
+	import { onMount } from 'svelte';
+
+	let { data } = $props();
+	let form: HTMLFormElement;
+
+	onMount(() => {
+		form.submit();
+	});
+</script>
+
+<svelte:head>
+	<title>Sign in — Trips</title>
+</svelte:head>
+
+<form bind:this={form} method="POST" action={data.signinUrl} class="hidden">
+	<input type="hidden" name="csrfToken" />
+</form>
+
+<div class="flex min-h-[60vh] items-center justify-center">
+	<p class="text-gray-500">Redirecting to sign in…</p>
+</div>