seo: add canonical and technical metadata tags

src/app/layout.tsx

@@ -12,6 +12,10 @@ import { I18nProvider } from '@/components/providers/I18nProvider';
 
 export const metadata: Metadata = {
   metadataBase: new URL(process.env.NEXT_PUBLIC_APP_URL || 'https://trustlab.dyzulk.com'),
+  applicationName: 'TrustLab',
+  alternates: {
+    canonical: '/',
+  },
   title: {
     template: '%s | TrustLab - SSL & Certificate Management',
     default: 'TrustLab | SSL & Certificate Management',
@@ -62,6 +66,7 @@ export const metadata: Metadata = {
   verification: {
     google: 'C7cNjxkyxXcQHExRsdhIGjZ658BcK9ftuIpJK8NYRGc',
   },
+  category: 'security',
 };
 
 export default function RootLayout({