feat: intégration plugin Kirby SEO

- Ajout de tobimori/kirby-seo via Composer
- snippet('seo/head') dans header.php (remplace les meta manuels)
- snippet('seo/schemas') dans footer.php pour JSON-LD
- Onglet SEO ajouté dans site.yml et tous les blueprints de pages
- Configuration SEO dans config.php (sitemap, robots, canonicalBase TODO)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

site/plugins/kirby-seo/config/hooks.php

@@ -0,0 +1,86 @@
+<?php
+
+use Kirby\Cms\File;
+use Kirby\Cms\Page;
+use Kirby\Toolkit\A;
+use Kirby\Toolkit\Str;
+use tobimori\Seo\Field\AltTextField;
+use tobimori\Seo\Seo;
+
+return [
+	'system.loadPlugins:after' => function () {
+		if (class_exists('tobimori\Queues\Queues')) {
+			\tobimori\Queues\Queues::register(\tobimori\Seo\Jobs\GenerateAltTextJob::class);
+		}
+	},
+	'file.create:after' => function (File $file) {
+		if ($file->type() !== 'image') {
+			return;
+		}
+
+		if (class_exists('tobimori\Queues\Queues')) {
+			\tobimori\Queues\Queues::push('seo:generate-alt-text', [
+				'fileId' => $file->id(),
+			]);
+
+			return $file;
+		}
+
+		return AltTextField::generateForFile($file);
+	},
+	'page.update:after' => function (Page $newPage, Page $oldPage) {
+		// only inject blueprint defaults if the seo tab is present
+		if ($newPage->blueprint()->tab('seo')) {
+			$updates = A::reduce(
+				$newPage->kirby()->option('tobimori.seo.robots.types'),
+				function ($carry, $robots) use ($newPage) {
+					$upper = Str::ucfirst($robots);
+
+					if ($newPage->content()->get("robots{$upper}")->value() === '') {
+						$carry["robots{$upper}"] = 'default';
+					}
+
+					return $carry;
+				},
+				[]
+			);
+
+			if (A::count($updates)) {
+				$newPage = $newPage->update($updates, $newPage->kirby()->languageCode());
+			}
+		}
+
+		if (Seo::option('indexnow.enabled')) {
+			$indexNow = new (Seo::option('components.indexnow'))($newPage);
+			$indexNow->request();
+		}
+
+		return $newPage;
+	},
+	'page.changeStatus:after' => function (Page $newPage, Page $oldPage) {
+		if (Seo::option('indexnow.enabled')) {
+			$indexNow = new (Seo::option('components.indexnow'))($newPage);
+			$indexNow->request();
+		}
+	},
+	'page.changeSlug:after' => function (Page $newPage, Page $oldPage) {
+		if (Seo::option('indexnow.enabled')) {
+			$indexNow = new (Seo::option('components.indexnow'))($newPage);
+			$indexNow->request();
+		}
+	},
+	'page.render:before' => function (string $contentType, array $data, Page $page) {
+		if (!class_exists('Spatie\SchemaOrg\Schema')) {
+			return;
+		}
+
+		if (option('tobimori.seo.generateSchema')) {
+			$page->schema('WebSite')
+				->url($page->metadata()->canonicalUrl())
+				->copyrightYear(date('Y'))
+				->description($page->metadata()->metaDescription())
+				->name($page->metadata()->metaTitle())
+				->headline($page->metadata()->title());
+		}
+	},
+];