Implement the Granite Team_Device Loader xlsx export feature:
- Add graniteLoaderConfig.js with all 41 columns, groupings, and
operation-type requirements (Change/Add/Delete/Move)
- Add graniteLoaderExport.js for client-side xlsx generation using
the xlsx library
- Add LoaderModal component with operation type selection, column
checkboxes, bulk defaults with per-row overrides, editable preview
table, CARD enrichment integration, and standalone paste-IPs mode
- Add POST /api/card/enrich-batch endpoint for batch IP lookup in
CARD returning EQUIP_INST_ID, hostname, site, ASN, team
- Integrate 'Generate Loader Sheet' button in Ivanti Queue floating
action bar (visible when CARD/GRANITE/DECOM items selected)
- Add card-connectivity-test.js script for verifying CARD API access
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