chore: update kirby-seo plugin to v2.0.0-alpha.12

Update plugin from v1.1.2 to v2.0.0-alpha.12 for Kirby 5 compatibility.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

site/plugins/kirby-seo/blueprints/fields/robots.php

@@ -0,0 +1,56 @@
+<?php
+
+use Kirby\Cms\App;
+use Kirby\Toolkit\A;
+use Kirby\Toolkit\Str;
+use tobimori\Seo\Meta;
+use tobimori\Seo\Seo;
+
+return function (App $kirby) {
+	if (!Seo::option('robots.active') || !Seo::option('robots.pageSettings')) {
+		return [
+			'type' => 'hidden'
+		];
+	}
+
+	$fields = [
+		'_robotsHeadline' => [
+			'label' => 'seo.fields.robots.label',
+			'type' => 'headline',
+			'numbered' => false,
+		]
+	];
+
+	$page = Meta::currentPage();
+	foreach ($kirby->option('tobimori.seo.robots.types') as $robots) {
+		$upper = Str::ucfirst($robots);
+
+		$fields["robots{$upper}"] = [
+			'label' =>  "seo.fields.robots.{$robots}.label",
+			'type' => 'toggles',
+			'help' => "seo.fields.robots.{$robots}.help",
+			'width' => '1/2',
+			'default' => 'default',
+			'reset' => false,
+			'options' => [
+				'default' => $page ?
+					A::join([
+						t('seo.common.default'),
+						$page->metadata()->get("robots{$upper}", ['fields'])->toBool() ? t('seo.common.yes') : t('seo.common.no')
+					], ' ')
+					: t('seo.common.default'),
+				'true' => t('seo.common.yes'),
+				'false' => t('seo.common.no'),
+			]
+		];
+	}
+
+	$fields['_seoLine3'] = [
+		'type' => 'line'
+	];
+
+	return [
+		'type' => 'group',
+		'fields' => $fields,
+	];
+};