The portable rig (laptop + two 16" PM1601 panels in portrait) had no
profile of its own, so display.kdl stayed on desk-1-home: the Sceptre
identity block matched nothing, its connector-keyed fallbacks carried
3440x1440@180.000 that no panel here reports, and niri silently drove
every panel at its preferred mode with positions written for the home
desk. key the two panels by captured EDID identity, pin the modes they
actually report, and centre the laptop against the 1920-tall panel band.
desk.sh match now selects this profile, so blankpad-desk-autoswitch no
longer dies at its initial match with "no desk profile matches".