Try both loopback families for IPv6 wildcard listeners without changing explicit or IPv4-only binds. Reserve each family a share of the API deadline, keep all later checks on the responding address, and retry a failed observation once with a fresh bounded budget in the telemetry background runner.
Keep genuine API, UI and asset failures visible and report only a closed timeout category, never transport details. Cover both real listener families, startup recovery, failure and privacy boundaries; synchronise the disclosure and subsystem contract.
Change-source: pulse-maintainer
fffaa64e57