♿ focus management for issues

static/js/comic-nav.js

@@ -124,6 +124,12 @@
 
         // Update URL without reload
         history.pushState({ comicId: comic.number }, '', `/comic/${comic.number}`);
+
+        // Move focus to comic image for keyboard navigation accessibility
+        const comicImageFocus = document.getElementById('comic-image-focus');
+        if (comicImageFocus) {
+            comicImageFocus.focus();
+        }
     }
 
     // Update or create comic image with optional mobile version