DuskPrimaryButton
fun DuskPrimaryButton(text: String, onClick: () -> Unit, modifier: Modifier = Modifier, enabled: Boolean = true)
Reusable button styles for Dusk-themed screens.
Three variants matching the existing approval UI aesthetic:
DuskPrimaryButton: white fill, dark text (primary action)
DuskSecondaryButton: near-transparent fill, muted text (secondary / deny)
DuskButtonRow: primary + secondary side-by-side with 2dp gap