The window had no way to say it was reading the untranslated stream. With
lcxl3-driver down there is no ParVagues LCXL3 port, the preference falls through
to the board's own DAW port, and v3 numbering puts row C's knobs on row B's
cells and the faders on no cell at all -- a coherent, confident, wrong picture,
with the port label in the header as the only tell.

Scoped to LCXL3: an original LCXL has no translator in front of it, so its raw
port IS the right port and a pip there would be a false alarm on a desk that
works. Set on the rebind tick, which already holds the resolved label, so it
costs no extra subprocess. Drawn beside the paused and stream-broken pips, no
words, like everything else in that header.