Backup-UDCData.bat / Backup-UDCData.ps1: tech-runnable, UAC-self-elevating.
Run on the OLD PC before retirement; reads bay number from
udc_settings.json, copies CurrentData.json + ArchiveData/ to
\\tsgwp00525\...\backup\udc\<bay>\, drops backup.manifest.json. Refuses
the 9999 placeholder so backups never collide across PCs.
Restore-UDCData.ps1: idempotent, designed for the manifest engine. 99%
of cycles silent no-op (sub-second, zero side effects); 1% (cycle after
a backup lands at this PC's bay) restores files locally, moves consumed
backup to <bay>\migrated\<timestamp>\, writes restore.manifest.json,
relaunches UDC. Round-trip + no-op fast path verified end-to-end on the
win11 analyzer VM. Already wired into the Standard-Machine GE-Enforce
manifest at standard-machine\manifest.json on the v2 share.
Complementary to the placeholder-to-real branch in Update-MachineNumber.ps1:
that branch covers the 9999 -> real flow, this one covers the
pre-imaged-then-swapped flow where Update-MachineNumber already ran
before any backup existed. Both safely no-op if the other consumed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
