fix(HoverCard): add type assertion for event target in click handler

src/components/HoverCard.astro

@@ -39,7 +39,7 @@ const {title, description, image = "", date} = Astro.props;
 
 			// Close card when clicking outside (mobile only)
 			document.addEventListener('click', (e) => {
-				if (window.innerWidth <= 768 && !card.contains(e.target)) {
+				if (window.innerWidth <= 768 && !card.contains(e.target as Node)) {
 					card.classList.remove('active');
 				}
 			});