Show cost per egg as 2 decimal places

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

nginx/html/budget.html

@@ -123,7 +123,7 @@
         </div>
     </main>
 
-    <script src="/js/api.js"></script>
-    <script src="/js/budget.js"></script>
+    <script src="/js/api.js?v=2"></script>
+    <script src="/js/budget.js?v=3"></script>
 </body>
 </html>