If the agent was started outside the updater (manually, during dev,
or from a prior systemd unit), there is no agent.pid for _stop_agent
to target, so a successful code install leaves the old in-memory
agent process still serving requests. Scan /proc for any decnet agent
command and SIGTERM all matches so restart is reliable regardless of
how the agent was originally launched.
Worker agent (decnet.agent):
- mTLS FastAPI service exposing /deploy, /teardown, /status, /health,
/mutate. uvicorn enforces CERT_REQUIRED with the DECNET CA pinned.
- executor.py offloads the blocking deployer onto asyncio.to_thread so
the event loop stays responsive.
- server.py refuses to start without an enrolled bundle in
~/.decnet/agent/ — unauthenticated agents are not a supported mode.
- docs/openapi disabled on the agent — narrow attack surface.
tests/test_base_repo.py: DummyRepo was missing get_attacker_artifacts
(pre-existing abstractmethod) and so could not be instantiated. Added
the stub + coverage for the new swarm CRUD surface on BaseRepository.
