Fix status button ID mismatch - use status-btn instead of status-toggle

client/src/main.js

@@ -31,7 +31,7 @@ document.addEventListener('DOMContentLoaded', () => {
   }
   
   // Status panel toggle
-  const statusToggle = document.getElementById('status-toggle');
+  const statusToggle = document.getElementById('status-btn');
   if (statusToggle) {
     statusToggle.addEventListener('click', toggleStatusPanel);
   }