feat: add sitemap, tag for SEO

app/components/Header.jsx

@@ -13,6 +13,7 @@ function Header() {
     { name: 'چرا ما', id: 'why-aramland' },
     { name: 'دانلود', id: 'download' },
     { name: 'ارتباط با ما', id: 'footer' },
+    { name: 'بلاگ', id: 'blog' },
   ];
 
   const handleNavClick = (sectionId) => {
@@ -38,7 +39,13 @@ function Header() {
           {navigationItems.map((item) => (
             <button
               key={item.id}
-              onClick={() => handleNavClick(item.id)}
+              onClick={() =>{
+                  if (item.id === 'blog') {
+                    window.open('https://aramland.approagency.ir/blog/', '_blank');
+                  } else {
+                    handleNavClick(item.id);
+                  }
+              }}
               className="text-gray-600 hover:text-primary-500 font-medium transition-colors duration-200 relative group text-sm lg:text-base"
             >
               {item.name}

app/components/SEOHead.jsx

@@ -0,0 +1,33 @@
+// components/SEOHead.jsx
+export function SEOHead({ 
+  title, 
+  description, 
+  canonical, 
+  ogImage 
+}) {
+  const siteUrl = 'https://aramland.approagency.ir/';
+  
+  return (
+    <>
+      <title>{title}</title>
+      <meta name="description" content={description} />
+      
+      {/* Canonical URL */}
+      <link rel="canonical" href={`${siteUrl}${canonical}`} />
+      
+      {/* Open Graph */}
+      <meta property="og:title" content={title} />
+      <meta property="og:description" content={description} />
+      <meta property="og:url" content={`${siteUrl}${canonical}`} />
+      <meta property="og:image" content={ogImage || `${siteUrl}/og-image.png`} />
+      <meta property="og:type" content="website" />
+      <meta property="og:locale" content="fa_IR" />
+      
+      {/* Twitter */}
+      <meta name="twitter:title" content={title} />
+      <meta name="twitter:description" content={description} />
+      <meta name="twitter:image" content={ogImage || `${siteUrl}/og-image.png`} />
+      <meta name="twitter:card" content="summary_large_image" />
+    </>
+  );
+}