تحسين خصائص تحسين محركات البحث عبر صفحات ومكونات متعددة، بما في ذلك إضافة البيانات المنظمة، وعلامات OpenGraph، ومكون SEOHead قابل لإعادة الاستخدام. تحديث عملية إنشاء خريطة الموقع لتشمل مسارات جديدة وتحسين ظهور الموقع بشكل عام.---Enhance SEO features across multiple pages and components, including the addition of structured data, OpenGraph tags, and a reusable SEOHead component. Update sitemap generation to include new routes and improve overall site visibility.

frontend/src/components/seo/SEOHead.tsx

@@ -0,0 +1,61 @@
+import { Helmet } from 'react-helmet-async';
+
+const SITE_NAME = 'SaaS-PDF';
+
+interface SEOHeadProps {
+  /** Page title (will be appended with " — SaaS-PDF") */
+  title: string;
+  /** Meta description */
+  description: string;
+  /** Canonical URL path (e.g. "/about") — origin is auto-prefixed */
+  path: string;
+  /** OG type — defaults to "website" */
+  type?: string;
+  /** Optional JSON-LD objects to inject as structured data */
+  jsonLd?: object | object[];
+}
+
+/**
+ * Reusable SEO head component that injects:
+ * - title, description, canonical URL
+ * - OpenGraph meta tags (title, description, url, type, site_name, locale)
+ * - Twitter card meta tags
+ * - Optional JSON-LD structured data
+ */
+export default function SEOHead({ title, description, path, type = 'website', jsonLd }: SEOHeadProps) {
+  const origin = typeof window !== 'undefined' ? window.location.origin : '';
+  const canonicalUrl = `${origin}${path}`;
+  const fullTitle = `${title} — ${SITE_NAME}`;
+
+  const schemas = jsonLd ? (Array.isArray(jsonLd) ? jsonLd : [jsonLd]) : [];
+
+  return (
+    <Helmet>
+      <title>{fullTitle}</title>
+      <meta name="description" content={description} />
+      <link rel="canonical" href={canonicalUrl} />
+
+      {/* OpenGraph */}
+      <meta property="og:title" content={fullTitle} />
+      <meta property="og:description" content={description} />
+      <meta property="og:url" content={canonicalUrl} />
+      <meta property="og:type" content={type} />
+      <meta property="og:site_name" content={SITE_NAME} />
+      <meta property="og:locale" content="en_US" />
+      <meta property="og:locale:alternate" content="ar_SA" />
+      <meta property="og:locale:alternate" content="fr_FR" />
+
+      {/* Twitter */}
+      <meta name="twitter:card" content="summary" />
+      <meta name="twitter:title" content={fullTitle} />
+      <meta name="twitter:description" content={description} />
+
+      {/* JSON-LD Structured Data */}
+      {schemas.map((schema, i) => (
+        <script key={i} type="application/ld+json">
+          {JSON.stringify(schema)}
+        </script>
+      ))}
+    </Helmet>
+  );
+}