feat(collector): add NUMA topology collector - #3785
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Summary
Add a Linux NUMA topology collector that exposes per-NUMA-node CPU and memory capacity, along with NUMA-pinned VM usage parsed from libvirt domain XML.
The parser supports libvirt memory units, avoids incorrect attribution for multi-node NUMA sets, and handles both
virsh dumpxmland/run/libvirt/qemu/*.xmlformats.Validation
go test ./...GOOS=linux go test -c ./collector/