Switch net.IOCounters to per-interface mode and aggregate traffic while excluding loopback and common virtual/tunnel interfaces. Adds isVirtualInterface helper to filter interfaces by exact names and prefixes (docker, veth, tun, wg, tailscale, etc.), sums BytesSent/BytesRecv across valid interfaces, and assigns the totals to status.NetTraffic. Removes the previous warning branch when no counters were found and preserves NetIO rate calculations using lastStatus.
MHSanaei
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