ChirpyFab
fun ChirpyFab(modelReadiness: ModelReadiness, onClick: () -> Unit, modifier: Modifier = Modifier)(source)
Expressive Chirpy FAB that communicates model state through motion.
Available: Gentle breathing pulse — alive and ready.
Checking: Spinning indeterminate ring with reduced opacity icon.
Downloading: Determinate circular progress arc wrapping the FAB.
Unavailable: Not rendered (caller should hide).