[evgeny-simplex]

smp server:

• the handshake looks up the service certificate and returns the stored service ID, or a new random ID for a certificate without a record
• the service record is stored when a service session creates a queue (NEW) or subscribes a queue (SUB, NSUB); a session whose certificate is already stored with another ID gets SERVICE

queue stores:

• getServiceId: lookup by certificate fingerprint and role (memory and Postgres)
• the memory store returns zero queues for service subscriptions of an unknown service

tests:

• service record is stored with its first queue
• agent test of a service ID change: expected events on the second reconnection