Fix the player script in the test environment; bump the app cache

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UaC9HmtHMdRP8dAbN4wAKj

public/player.js

@@ -296,4 +296,4 @@ function openNow() {
   updateNow(); syncUI();
 }
 // Tell the page how tall the player is, so buttons that float at the bottom (Home, Ask) sit above it instead of covering it.
-{ const pe = $('#player'); if (pe && window.ResizeObserver) new ResizeObserver(() => document.documentElement.style.setProperty('--playerh', (pe.hidden ? 0 : pe.offsetHeight) + 'px')).observe(pe); }
+if (typeof ResizeObserver === 'function' && typeof document !== 'undefined') { const pe = document.getElementById('player'); if (pe) new ResizeObserver(() => document.documentElement.style.setProperty('--playerh', (pe.hidden ? 0 : pe.offsetHeight) + 'px')).observe(pe); }