StepUpAuth ran `souveraine-pam-auth`, else `pkcheck --action-id
org.souveraine.stepup`. Neither exists: no such binary was ever written
and no polkit action was ever shipped, so both branches failed and every
grant request was silently denied. The header also described passing a
password through SOUVERAINE_STEPUP_PASSWORD, which the code never set.
Now a PamContext against the system souveraine-stepup service, shipped by
cc541d1. The prompt is not owned here: pamMessage raises
promptRequired(family, message, secret) and a surface answers with
respond(). An empty answer is legitimate, not a cancel -- the FPC factor
prompts "Touch and hold" and consumes its ticket on a blank response.
Deliberately unchanged: grant model, TTL, revocation and break-glass all
still live in the shell. Moving them to sessiond is a separate pass.
Authorship: this patch is Rook's work, staged in surfaces/quickshell/
patches/ on 2026-08-12. The patch file carried my identity in its From
header but I did not write it; recording that here rather than wearing it
silently.
Verified: /usr/lib/qt6/bin/qmllint exit 0 against the composed tree, gate
proven able to reject (exit 255 on a deliberately broken control).
Untested: no shell has loaded this and no surface calls respond() yet.