Follow-up to the salvaged wrapper: the argument layer now lives in a topical
sibling (agent/legacy_cli.py) instead of growing the run_agent facade, and
`python run_agent.py` (the installer's PATH launcher for hermes-agent) routes
through the same parser instead of fire, so `--version` and a bare invocation
no longer run the demo turn there either.
- --help/-h/--version use argparse's own exit path; options carry help text
- the runner is injected (`run=`) so `python run_agent.py` does not import
run_agent a second time
- tests trimmed to two invariants that resolve the console-script target
from pyproject exactly like pip's wrapper (red on main, green here)
- docs: hermes-agent section in the CLI reference
2fb564d2df