Smart scroll-to-top preserves verse auto-navigation

- **Conditional scroll-to-top**: Only scroll to top when no verse hash is present
- **Preserves verse navigation**: Verse favorites and search results auto-scroll to verses
- **Mobile-friendly**: Version selections still scroll to top on book pages
- **No breaking changes**: All existing auto-navigation features remain intact

Mobile scrolling now works perfectly without breaking verse deep-linking!

frontend/src/App.tsx

@@ -44,8 +44,10 @@ function App() {
       setSelectedVersion('');
     }
 
-    // Scroll to top when navigating to new pages
+    // Scroll to top when navigating to new pages (unless there's verse auto-navigation active)
+    if (!window.location.hash.startsWith('#verse-')) {
       window.scrollTo(0, 0);
+    }
   }, [location.pathname]);
 
   useEffect(() => {