Field-measured necessity, not cosmetics: unstamped, the minted instances
read 'Lautsprecher (2- Steam Streaming Microphone)' and even the box's
owner picked the wrong device out of the Sound settings zoo (as did the
S1 probe's name match before it). The provider now stamps device-desc +
device-name through the pad program's proven machinery — write_stamps/
stamps_served, extracted from the pad-only stamp functions — with the
same store-first/registry-fallback routes and settle/re-pass discipline.
Names only: a wider stamp set makes AudioEndpointBuilder re-mint the
endpoint under a new GUID (measured on pads). Stamping is best-effort
(SYSTEM ACL route); the wiring never depends on names — identity stays
the recorded id.