Replace native confirm() dialogs with styled confirm modals.

Add shared confirm-dialog component, Alpine ladillConfirm store, and
swap browser confirms for consistent bottom-sheet modals across user,
admin, and hosting flows.

Co-authored-by: Cursor <cursoragent@cursor.com>

deploy/deploy.sh

@@ -205,7 +205,13 @@ switch_current_release() {
 }
 
 log "Switching current release"
-switch_current_release
+if ! switch_current_release; then
+  echo "Failed to point $CURRENT_LINK at $NEW_RELEASE" >&2
+  exit 1
+fi
+
+LIVE_REV="$(cat "$CURRENT_LINK/REVISION" 2>/dev/null || echo unknown)"
+log "Live release: $STAMP (revision $LIVE_REV)"
 
 log "Optimizing Laravel"
 if [ -L "$CURRENT_LINK" ] && [ -f "$CURRENT_LINK/artisan" ]; then