feat(hardware): collect and export licenses via Dell iDRAC10 Redfish walk

Implements the hardware.licenses[] contract section (v2.12, refreshed from
reanimator/core's hardware-ingest-contract.md — was v2.11 locally).

- models.License / HardwareConfig.Licenses mirror the contract field set.
- collector.collectLicenses() reads the standard DMTF
  /redfish/v1/LicenseService/Licenses collection during Redfish-walk replay;
  it's a generic DMTF resource, not Dell-specific, so any future vendor's
  Redfish walk gets license collection for free through
  ReplayRedfishFromRawPayloads.
- vendors/dell merges replayed Licenses like every other category.
- exporter.convertLicenses/dedupeLicenses wire hw.Licenses into the
  reanimator export directly (no canonical-devices merge — licenses have no
  physical identity to merge on), setting Present on every record from the
  start (per the ADL-049 round-trip lesson).
- chart viewer renders a licenses section in /chart/current.

Verified end-to-end on the PowerEdge R7715 (1TVFYL4) TSR: 3 system-level
licenses extracted and correctly exported/rendered.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

internal/collector/redfish_replay.go

@@ -79,6 +79,7 @@ func ReplayRedfishFromRawPayloads(rawPayloads map[string]any, emit ProgressFn) (
 		emit(Progress{Status: "running", Progress: 80, Message: "Redfish snapshot: replay network/BMC..."})
 	}
 	psus := r.collectPSUs(chassisPaths)
+	licenses := r.collectLicenses()
 	pcieDevices := r.collectPCIeDevices(systemPaths, chassisPaths)
 	boardInfo := parseBoardInfoWithFallback(systemDoc, chassisDoc, fruDoc)
 	applyBoardInfoFallbackFromDocs(&boardInfo, boardFallbackDocs)
@@ -126,6 +127,7 @@ func ReplayRedfishFromRawPayloads(rawPayloads map[string]any, emit ProgressFn) (
 			PCIeDevices:     pcieDevices,
 			GPUs:            gpus,
 			PowerSupply:     psus,
+			Licenses:        licenses,
 			NetworkAdapters: nics,
 			Firmware:        firmware,
 		},