The shim is a shared page, but only windows.ps1 publishes a stage and an
elapsed count. On mac and Linux posix.sh publishes `running` with an empty
message and no clock, so the running branch rendered the h2 back into the
muted line ("Updating Hermes" twice) and started a clock in the browser,
losing "Hermes will open once done." on both platforms.
A clock started in the page measures when the window painted, not how long
the update has been running -- on posix that is the only clock there is, and
it reads zero after the desktop-exit wait has already burned 30s. That is the
hardcoded-milestone problem #75895 removed, in a new costume.
So: elapsed comes from the orchestrator or is not shown. serve-ui.py stamps
it per request from the hand-off start (a value written into the status file
would freeze between publishes, which are minutes apart -- exactly the stall
the line exists to disprove), matching what Windows' in-process listener
already does. posix.sh gets the stages it was missing, at the four gates it
genuinely waits on. Absent a stage the page keeps the settled copy, and an
old orchestrator that sends no clock simply shows no clock.
scripts/desktop-update.ps1 moves to scripts/desktop-update/windows.ps1 (a
compat forwarder stays at the old path for one asar/checkout skew cycle)
and gains the shim: scripts/desktop-update/ui.html rendered in a
chromeless Edge app window, fed done|error over a loopback /progress
endpoint. The page is #75895's hand-off screen ported verbatim (Fourier
Flow loader, one title, one line, OS light/dark, charcoal dark seeds);
failure is the terse card pointing at hermes debug share. The WinForms
card stays as the no-Edge fallback, same shape.
Salvaged from the web-shell spike: TcpListener runspace server, Edge
--app spawn with throwaway profile, degradation ladder, -SelfTestUi.
Co-authored-by: Teknium <127238744+teknium1@users.noreply.github.com>
Brooklyn Nicholson