- test_ws_transport.py: drives WebSocketRelayTransport against a REAL in-process
websockets server (not a mock socket): handshake (hello->descriptor), inbound
frame -> handler, outbound request/response correlation, follow_up routing,
and clean disconnect failing pending waiters. Skips if websockets is absent.
- test_relay_registration.py: rewritten for the config-driven gate — registers
when GATEWAY_RELAY_URL is set / an explicit url is passed / force=True; no-op
without a URL; trailing slash stripped; adapter constructs through the registry.
Full relay suite: 57 passed.
register_relay_adapter() registers the generic 'relay' platform via the same
PlatformRegistry path as plugin adapters — no core dispatch changes. OFF by
default (dark-launch): only registers when HERMES_GATEWAY_RELAY is truthy (or
force=True for tests), so existing single-tenant/direct deployments are
unaffected. Factory builds a transport-less RelayAdapter with a placeholder
descriptor; the real descriptor is negotiated at handshake.
Phase 1, Task 1.3 of the gateway-relay plan.
