Don't prompt the user to reboot until the enrollment pipeline has
finished its pre-reboot work. Previously Test-RebootState fired as
soon as DSCDeployment.log showed "completed", even if Phase 1 (Identity)
or Phase 2 (SFLD config) checks were still in progress.
Now the reboot prompt requires ALL of these to be green in the snapshot:
Phase 1: AzureAdJoined, IntuneEnrolled, EmTaskExists, PoliciesArriving
Phase 2: SfldRoot, FunctionOk, SasTokenOk
Phase 3: DeployLogExists, DeployComplete
This prevents the edge case where DSCDeployment.log completes but the
user reboots before Intune policies have fully landed, which could leave
the post-reboot DSC install phase without the SAS token or function
assignment it needs.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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