decnet.swarm.client exposes:
- MasterIdentity / ensure_master_identity(): the master's own CA-signed
client bundle, issued once into ~/.decnet/ca/master/.
- AgentClient: async-context httpx wrapper that talks to a worker agent
over mTLS. health/status/deploy/teardown methods mirror the agent API.
SSL context is built from a bare ssl.SSLContext(PROTOCOL_TLS_CLIENT)
instead of httpx.create_ssl_context — the latter layers on default-CA
and purpose logic that broke private-CA mTLS. Server cert is pinned by
CA + chain, not DNS (workers enroll with arbitrary SANs).
tests/swarm/test_client_agent_roundtrip.py spins uvicorn in-process
with real certs on disk and verifies:
- A CA-signed master client passes health + status calls.
- An impostor whose cert comes from a different CA cannot connect.
