The dashboard PTY test failed on this branch with "node: not installed and
lazy installs are disabled". On this branch _make_tui_argv asks PM for node
(hermes_cli/main_tui_launch.py _tui_node_bin). The E2E sandbox forbids lazy
installs (HERMES_DISABLE_LAZY_INSTALLS=1 in tests/e2e/core/dashboard
hermetic_env). It gets node only when the runner's PM store has it
(tests/e2e/core/_pm_dependencies.py). The e2e job got node from
actions/setup-node, so node was on PATH but not in the PM store. main passes
the test because main's TUI launch takes node from PATH.
Install the locked toolchain (setup-pm toolchain: all) before npm ci, in
place of setup-node. The locked Node 26 also satisfies the boot-contract
suite. When HERMES_E2E_REQUIRE_TUI=1, the fixture now fails at once if the
store has no node, not later with an opaque 1011 close.
fcd4e40dfc