fix: container-level capture touch with direct viewport.scrollTop manipulation

- Attach capture-phase touch listeners to .terminal-container (parent of xterm)
- On vertical swipe: e.preventDefault() blocks page scroll, then directly
  adjust .xterm-viewport.scrollTop by the swipe delta
- This bypasses term.scrollLines() API and directly manipulates the DOM
  element that xterm.js watches via its internal scroll handler
- Remove all CSS touch-action overrides — container handles it in JS

apps/web/src/styles.css

@@ -3713,16 +3713,6 @@ a.nav-item,
 
 /* xterm.js manages its own scrolling and viewport dimensions */
 
-/* Mobile: allow native vertical touch panning on xterm viewport */
-.terminal-wrapper.mobile .xterm .xterm-viewport {
-	touch-action: pan-y;
-	overflow-y: scroll !important;
-	-webkit-overflow-scrolling: touch !important;
-	overscroll-behavior-y: contain;
-	transform: translate3d(0, 0, 0);
-	scroll-behavior: smooth;
-}
-
 /* Special Keys Strip */
 .special-keys-strip {
 	flex-shrink: 0;