Add PACKAGE_LEF as a dedicated `package` field in the QC-GATE API payload
and display it as a new column after LOT ID in LotTable.vue. Archive
qc-gate-lot-package-column, historical-query-slow-connection, and
msd-multifactor-backward-tracing changes with their delta specs synced
to main specs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
