Fix scrollbars for full-size VNC view

- Allow container to expand with height: auto and max-height: none in full-size mode
- Set min-width and min-height to fit-content for #noVNC_screen to allow proper canvas sizing
- Add debugging logs to check canvas and container dimensions after zoom toggle
- Ensure scrollbars appear when remote desktop is larger than viewport

wssshd2/templates/vnc.html

@@ -65,6 +65,12 @@
         }
         .vnc-container.full-size {
             overflow: auto;
+            max-height: none;
+            height: auto;
+        }
+        .vnc-container.full-size #noVNC_screen {
+            min-width: fit-content;
+            min-height: fit-content;
         }
         /* GNOME-like window decorations */
         .vnc-window {
@@ -309,6 +315,15 @@ function toggleZoom() {
         rfb.scaleViewport = false;
         rfb.clipViewport = true;
 
+        // Force a resize to ensure canvas is properly sized for scrolling
+        setTimeout(() => {
+            const canvas = document.querySelector('#noVNC_screen canvas');
+            if (canvas) {
+                console.log('Canvas size after zoom toggle:', canvas.width, 'x', canvas.height);
+                console.log('Container size:', vncContainer.clientWidth, 'x', vncContainer.clientHeight);
+            }
+        }, 100);
+
         showNotification('Switched to actual size view with scrollbars', 'info');
     }
 }