The public demo runs PULSE_MOCK_UPDATE_INTERVAL=60s, which stretches the
10-cohort supplemental rotation to 600s while the unified registry still
marks TrueNAS/VMware/availability sources stale after 120s. Every row those
sources own spent ~80% of each rotation flagged as a degraded stale source,
so the TrueNAS Storage tab read Healthy 0 / Attention 21 (and the vSphere
page all-Attention) despite healthy fixture data.
Rebase provider-backed fixtures every tick once the rotation would outlive
the 120s freshness budget (at slow ticks that is cheaper per wall-clock
second than the default 2s config's once-per-20s cadence), and derive mock
supplemental stale thresholds from the actual refresh cadence the same way
PVE/PBS/PMG thresholds already derive from their polling intervals. Split
the supplemental uptime step so per-tick refreshes do not advance PBS
uptime by the rotation-scaled step.
Pulse Test
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