v1.4.1 — Phase 08 prerequisite download folder

[1.4.1] - 2026-08-14

Bug-fix release. Fixes #1,
reported by @ehindola.

Fixed

• Phase 08 failed deterministically when no offline prerequisite cache
  was staged. Install-CMSite only created C:\Install\CM-PreReqs as a
  side effect of pushing an offline cache, inside if ($CMPreReqsPath).
  With no cache staged that block is skipped entirely -- but the generated
  unattend INI still points PrerequisitePath at that folder, and CM setup
  does not create its own download folder. Setup aborted in about 30
  seconds with WARNING: Download folder C:\Install\CM-PreReqs does not exist and Failed to download product updates (0x80070003)
  (ERROR_PATH_NOT_FOUND). The folder is now ensured unconditionally
  before the INI is written, on both the cached and download paths.

  This branch was never exercised in testing: every verified end-to-end run
  had C:\LabSources\SoftwarePackages\CM-Prereqs staged, so
  Install-HomeLab's auto-discovery always found a cache and the folder
  always got created incidentally.

• A hard setup failure was reported as "in progress" and then hidden for
  12 minutes. Resolve-CMSetupLogStatus did not recognise CM 2509's own
  terminal banner, Failed Configuration Manager Server Setup -- the word
  order is reversed from the Configuration Manager Setup failed phrase it
  did match, with Server inserted. Setup's failure therefore scored as
  InProgress, the engine logged the benign "normal 2509 async handoff"
  message, waited out the full Wait-CMReady timeout, and threw
  SMS_EXECUTIVE / CM provider did not come ready within 12m -- pointing at
  the wrong phase entirely. The banner and
  Setup failed to download prerequisite components are now matched, so
  this class of failure surfaces immediately with the real log context.

  Success detection is deliberately unchanged: a healthy install logs
  InProgress at setup.exe exit and is recovered by Wait-CMReady
  (re-confirmed against a clean 2026-08-12 run), and a regression test now
  pins that behaviour so the new patterns cannot flip it.