- callEnd is now a rotated-handset hang-up icon (was a phone-off placeholder).
- All pages reference /icons.js?v=3 so browsers/proxies fetch the corrected
file instead of a stale cached copy (fixes 'old end icon' + icons not
appearing until a re-render when an old/404 icons.js was cached).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>