One named test per implementation-guide bullet that the existing suites did not
already cover: a lost result that leaks no roots while the endpoint's own cache
still replays it, a retransmission of one domain body under a fresh call id, no
failover onto a replacement registration, a status RPC answered while another
handler is delayed, and a disconnect that reclaims logical ownership without
touching a file the consumer still has open. Each runs over both transports.
BUS-01 also asks for equivalent behaviour traces from the two transports, so
tests/common/mod.rs gains a Trace recorder whose record() panics on any
router-issued id: a trace can hold methods, payload fields, counts, sequences,
credits, cancel states and error codes, and nothing operational. One RPC
scenario and one pub/sub-with-artifacts scenario produce 29 events, identical in
memory and over a Unix socket. FLYBUS_TRACE=1 prints them.
The sixteen bullets the older suites already prove are cited in the conformance
report rather than duplicated here.