A sink node re-created under a running Ardour left Master with no hardware
output: every unit active, the rig silent. Additive only (never prunes), off
switch TIDAL_AUTOROUTE_MASTER=0, ports taken from the graph not assumed FL/FR.
The control-surface assertion used an old PipeWire port spelling and was a
silent no-op on 1.0.5; resolve it from the live graph. One pw-link snapshot per
tick instead of three.