A non-interactive `hermes plugins install <name> --enable` had no path
forward (#122134): the y/N gate for Python deps refuses without a TTY,
the publication of an active replacement is declined the same way
("Reinstall declined: dependency install skipped (non-interactive)"),
and the suggested `hermes plugins enable` recovery cannot publish a
plugin that was never installed.
Add an explicit `--yes-deps` flag (mutually exclusive with `--no-deps`)
that carries the user's own answer through both consent gates: the
enable-time `_consent_python_deps` prompt and the publication-time
active-replacement veto in `publish_plugin`. The fail-closed default is
unchanged — an unattended install without the flag is still refused
rather than consented to on the user's behalf.
169e77039a