feat(metadata): enhance SEO by adding Open Graph and Twitter metadata across various pages

feat(blog): implement loading and error handling components for blog pages

feat(clinic): add loading and error handling components for clinic pages

feat(doctor): create loading and error handling components for doctor pages

feat(clinics): add loading component for clinics page

feat(specialties): improve metadata for specialties page with Open Graph and Twitter images

feat(layout): add structured data for Organization and WebSite in layout

fix(middleware): restrict middleware execution to specific routes to improve performance

chore(audit): add comprehensive SEO and performance audit documentation

app/specialties/page.js

@@ -10,10 +10,12 @@ export async function generateMetadata() {
     ? `تخصص‌های پزشکی در ${cityName} | ${siteName}`
     : `تخصص‌های پزشکی | ${siteName}`;
   const description = `لیست کامل تخصص‌های پزشکی${cityName ? " در " + cityName : ""}. رزرو نوبت از متخصصین مختلف به صورت آنلاین.`;
+  const image = "https://www.nobat724.com/assets/images/logo.png";
   return {
     title,
     description,
-    openGraph: { title, description },
+    openGraph: { title, description, images: [image] },
+    twitter: { card: "summary_large_image", title, description, images: [image] },
   };
 }