The entrypoint called /usr/local/bin/dsh-workspace-doctor while the
Dockerfile installs /usr/local/bin/dsh-workspace-doctor.mjs, so every
start logged "...: not found" and the workspace doctor never ran: no
report, no repair. The CI smoke test checked the .mjs path with a direct
`docker exec`, which cannot see a mistake in the entrypoint's own
invocation, so the build stayed green while the container was broken.
Resolve the doctor by name (`command -v dsh-workspace-doctor.mjs`) in
both the root and the non-root path, and log an explicit "not installed
in this image" line when it cannot be found, instead of the shell's bare
"not found". The smoke test now reads the container's boot log: it
requires the doctor's own "dsh-workspace-doctor:" output to appear, and
fails if the entrypoint logs its "workspace doctor:" failure line — that
covers path, exec bit and invocation together, which is the class of
mistake that shipped.
README: manual repair through a one-off container with --entrypoint (dsh
stopped, so nothing races the registry write), and the note that an
existing Unraid container does not pick up the template's new Workspace
Doctor variable on its own.