chore: add built vfox binary to .gitignore

Co-authored-by: aooohan <40265686+aooohan@users.noreply.github.com>

Author: Copilot

.gitignore

@@ -10,3 +10,5 @@ coverage.out
 **/.available.cache
 
 .vfox
+/vfox
+/vfox.exe