feat: log in with tumblr

Foxnouns.Frontend/src/routes/auth/callback/tumblr/+page.server.ts

@@ -0,0 +1,8 @@
+import createCallbackLoader from "$lib/actions/callback";
+import createRegisterAction from "$lib/actions/register";
+
+export const load = createCallbackLoader("tumblr");
+
+export const actions = {
+	default: createRegisterAction("/auth/tumblr/register"),
+};

Foxnouns.Frontend/src/routes/auth/callback/tumblr/+page.svelte

@@ -0,0 +1,31 @@
+<script lang="ts">
+	import Error from "$components/Error.svelte";
+	import NewAuthMethod from "$components/settings/NewAuthMethod.svelte";
+	import OauthRegistrationForm from "$components/settings/OauthRegistrationForm.svelte";
+	import { t } from "$lib/i18n";
+	import type { ActionData, PageData } from "./$types";
+
+	type Props = { data: PageData; form: ActionData };
+	let { data, form }: Props = $props();
+</script>
+
+<svelte:head>
+	<title>{$t("auth.register-with-tumblr")} • pronouns.cc</title>
+</svelte:head>
+
+<div class="container">
+	{#if data.error}
+		<h1>{$t("auth.register-with-tumblr")}</h1>
+		<Error error={data.error} />
+	{:else if data.isLinkRequest}
+		<NewAuthMethod method={data.newAuthMethod!} user={data.meUser!} />
+	{:else}
+		<OauthRegistrationForm
+			title={$t("auth.register-with-tumblr")}
+			remoteLabel={$t("auth.remote-tumblr-account-label")}
+			remoteUser={data.remoteUser!}
+			ticket={data.ticket!}
+			error={form?.error}
+		/>
+	{/if}
+</div>