Fix(Web): exit remote-desktop fullscreen blocks device-list clicks

server/web/index.html

@@ -1873,6 +1873,24 @@
         }
 
         function showPage(pageId) {
+            // Leaving the remote-desktop page? Drop fullscreen first.
+            // #screen-page is the requestFullscreen target; while it remains
+            // the document.fullscreenElement the browser blocks pointer /
+            // keyboard interaction with anything outside its subtree —
+            // devices-page lives outside it, so without this exit a click
+            // ANYWHERE on the device list silently no-ops until the user
+            // hits ESC themselves. Same hazard for device_offline auto-
+            // navigation, manual Back, and any future navigation we add.
+            if (pageId !== 'screen-page') {
+                const sp = document.getElementById('screen-page');
+                if (sp && sp.classList.contains('active')) {
+                    if (document.fullscreenElement || document.webkitFullscreenElement) {
+                        const exit = document.exitFullscreen || document.webkitExitFullscreen;
+                        if (exit) exit.call(document).catch(() => {});
+                    }
+                    sp.classList.remove('pseudo-fullscreen');  // iOS fallback path
+                }
+            }
             document.querySelectorAll('.page').forEach(p => p.classList.remove('active'));
             document.getElementById(pageId).classList.add('active');
         }