detect_install_method() returned "docker" for any container (is_container()),
before the .git check. Both supported installs already self-identify via the
.install_method stamp read first: the curl installer (scripts/install.sh)
git-clones and stamps "git"; the published nousresearch/hermes-agent image
stamps "docker" at boot via docker/stage2-hook.sh. An unsupported manual
install dropped into a container has no stamp, so the bare container check
hijacked it to "docker" and 'hermes update' bailed with the docker-pull
guidance.
Drop the redundant is_container() -> docker fallback. Unstamped installs now
fall through to the .git/pip checks like any off-path install; both supported
paths are unaffected because the stamp wins first.
Fixes#34397.
Teknium
c1b2d0917f