MAC-format mismatches between collector sources (dash vs colon separators)
were preventing duplicate NIC/PCIe entries from merging in the canonical
device dedup pass. Add MAC address normalization and merge devices that
share a normalized MAC before the existing serial/BDF-based dedup runs.
Also fix a bug in the Inspur redis-dump serial fallback parser: when a
field's inline value was the placeholder "N/A", the code incorrectly fell
through to a window-scan fallback that could pick up an unrelated adjacent
Redis key name (e.g. "AssetInfoPCIEMMIOSpace") as a fake serial number.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
