fix: use capture:true on touch event listeners to prevent page JS interference

Touch handlers used bubble phase (no capture:true), so any page script that
called stopPropagation() on touchstart/touchend — e.g. Authelia's login form
or scroll containers — silently blocked the preload's swipe detection.

Using capture:true fires the preload's listeners in the capture phase (before
any element-level handlers), so swipe works even on pages with their own
touch handling. Applied to both preloads (standard and auto-show keyboard).

Also adds missing [TOUCH] 2-finger HORIZONTAL console.log to the standard
preload so swipe events are visible in electron.log for debugging.

https://claude.ai/code/session_01EyjEQLWbTXcZgbMDarf7NU

ubuntu-based-kiosk-v1.0.2.sh

@@ -7172,7 +7172,7 @@ window.addEventListener('DOMContentLoaded',()=>{
       touchStartTime=Date.now();
       fingerCount=e.touches.length;
     }
-  },{passive:true});
+  },{passive:true,capture:true});
 
   document.addEventListener('touchend',e=>{
     if(e.changedTouches.length>=1){
@@ -7194,6 +7194,7 @@ window.addEventListener('DOMContentLoaded',()=>{
       }
       // 2-finger HORIZONTAL = change tabs
       else if(fingerCount===2&&absX>SWIPE_THRESHOLD&&absY<SWIPE_TOLERANCE){
+        console.log('[TOUCH] 2-finger HORIZONTAL - change tab');
         ipcRenderer.send(deltaX>0?'swipe-right':'swipe-left');
       }
       // 1-finger HORIZONTAL = arrow keys
@@ -7207,7 +7208,7 @@ window.addEventListener('DOMContentLoaded',()=>{
         });
       }
     }
-  },{passive:true});
+  },{passive:true,capture:true});
 
   // Show pause button on user interaction (for rotation sites only)
   let lastUserInteraction=0;
@@ -9188,7 +9189,7 @@ window.addEventListener('DOMContentLoaded',()=>{
       touchStartTime=Date.now();
       fingerCount=e.touches.length;
     }
-  },{passive:true});
+  },{passive:true,capture:true});
 
   document.addEventListener('touchend',e=>{
     if(e.changedTouches.length>=1){
@@ -9231,7 +9232,7 @@ window.addEventListener('DOMContentLoaded',()=>{
         });
       }
     }
-  },{passive:true});
+  },{passive:true,capture:true});
   
   // Optional: Auto-show on text field focus (can be disabled)
   let autoShowEnabled = true; // Set to false to disable auto-show