NodeView gains agentOs from AgentNode.ProbeOS (overlaid ahead of
the telemetry early-exit, like ProbeOnly). NodeList gates both
badge sites (list column + detail) on !isWindowsAgentOS(agentOs).
Backend requestAgentUpdate refuses Windows rows up front instead
of recording an intent that would only age out.
ProbeOS is reliable here: the frozen A2.2.1 Windows agent reports
probeFacts.os 'Windows 10' on register and heartbeat (see the
legacy-Windows contract test) and the panel persists it to
probe_os. Empty ProbeOS fails open on both sides. No fake
version, no per-node freeze switch, no Windows agent change, no
new win asset. The one-click action button itself is unchanged;
clicking it on a Windows row now errors clearly instead of
recording a dangling intent.
Muse
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