seo: unify domain to aramejan.com; real logo, favicon, og-image; assetlinks; fix canonical/sitemap/robots

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/components/Header.jsx

@@ -40,7 +40,7 @@ function Header() {
               key={item.id}
               onClick={() => {
                 if (item.id === 'blog') {
-                  window.open('https://aramland.approagency.ir/blog/', '_self');
+                  window.open('https://aramejan.com/blog/', '_self');
                 } else {
                   handleNavClick(item.id);
                 }
@@ -85,7 +85,7 @@ function Header() {
                 key={item.id}
                 onClick={() => {
                   if (item.id === 'blog') {
-                    window.open('https://aramland.approagency.ir/blog/', '_self');
+                    window.open('https://aramejan.com/blog/', '_self');
                   } else {
                     handleNavClick(item.id);
                   }