Final pitch-probe verdict on the SSM driver pair: the render pin is
stereo-only, the capture pin mono-only (stamping either differently makes
the endpoint unopenable), and the crossing between them is a RAW byte
pass — so voice fed through the render endpoint reads back an octave low
and no format stamp can fix it. S3 peak-based PASS = false pass; per the
design doc revert clause the mic falls back to the name ladder (a virtual
cable), pending the user re-decision. The SPEAKERS substrate keeps tier-0
(no driver crossing — a plain engine loopback tap, measured clean).
minted_ids() publishes speakers only; the mic endpoints stay minted and
recorded (provisioned()) for the micpitch probe and a possible future
non-render transport, and their format stamps now pin each side to its
pin one true format — healing the endpoints this branch earlier
mis-stamped.
enricobuehler
cc53b3d6b0