fix(share): resolve typescript errors in ReaderView and ShareButton

web/src/components/ReaderView.tsx

@@ -1,6 +1,5 @@
-import { ReaderViewProps } from './ReaderView'; // Self-reference import seems wrong, removing.
+import { useState } from 'react';
 import { ShareButton } from './ShareButton';
-// No need to import ReaderViewProps if we define it here, but let's keep clean.
 import { type Article, articlesApi } from '../api/articles';
 
 interface ReaderViewProps {

web/src/components/ShareButton.tsx

@@ -35,7 +35,7 @@ export function ShareButton({ article, className = "" }: ShareButtonProps) {
     };
 
     const copyToClipboard = () => {
-        navigator.clipboard.writeText(article.url);
+        navigator.clipboard.writeText(article.url || window.location.href);
         setCopied(true);
         setTimeout(() => setCopied(false), 2000);
         setIsOpen(false);