Adds machineNumber field to status.json (read from C:\Enrollment\machine-number.txt).
Bumps enforcerVersion to '2.5' so check-fleet-convergence.txt's column
flips when fleet picks up the self-update. Pairs with the Install-FromManifest
v2.5 (WaitTimeoutSec) so both bumps land together.
Convergence-check txt updated to display the new MN column.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>