refactor(burn-in): remove -SkipArtifact; build.ps1 always produces dist/

scripts/Invoke-CIJob.ps1

@@ -105,11 +105,6 @@ param(
     # Requires Set-TemplateSharedFolders.ps1 to have been run on the template.
     [switch] $UseSharedCache,
 
-    # Skip artifact packaging and collection (Phase 5 packaging + Phase 6).
-    # Use for burn-in / smoke builds that intentionally produce no output.
-    # In production (absent) the build must produce artifacts or the job fails.
-    [switch] $SkipArtifact,
-
     # Credential Manager target for Gitea PAT used by -UseGitClone (private repos).
     # Store with: New-StoredCredential -Target 'GiteaPAT' -UserName '<user>' -Password '<pat>' -Persist LocalMachine
     # Ignored when -UseGitClone is not set.
@@ -499,17 +494,12 @@ try {
     if ($GuestArtifactSource -ne '') { $remoteBuildParams['GuestArtifactSource'] = $GuestArtifactSource }
     if ($ExtraGuestEnv.Count -gt 0)  { $remoteBuildParams['ExtraGuestEnv']       = $ExtraGuestEnv }
     if ($UseSharedCache)             { $remoteBuildParams['UseSharedCache']       = $true }
-    if ($SkipArtifact)               { $remoteBuildParams['SkipArtifact']         = $true }
     & "$scriptDir\Invoke-RemoteBuild.ps1" @remoteBuildParams
     Write-JobEvent -Phase 'phase5.build' -Status 'success'
     $phaseTimings.Add([PSCustomObject]@{ Phase = 'Phase 5 - Remote build'; Sec = [int]((Get-Date) - $phaseStart).TotalSeconds })
     $phaseStart = Get-Date
 
     # ── Phase 6: Collect artifacts ────────────────────────────────────────
-    if ($SkipArtifact) {
-        Write-Host "`n[Phase 6/6] Artifact collection skipped (-SkipArtifact)."
-        Write-JobEvent -Phase 'phase6.artifacts' -Status 'skipped'
-    } else {
         Write-Host "`n[Phase 6/6] Collecting artifacts..."
         Write-JobEvent -Phase 'phase6.artifacts' -Status 'start'
         if ($GuestOS -eq 'Linux') {
@@ -530,8 +520,7 @@ try {
                 -HostArtifactDir   $jobArtifactDir `
                 -IncludeLogs
         }
-        Write-JobEvent -Phase 'phase6.artifacts' -Status 'success' -Data @{ dir = $jobArtifactDir }
-    }
+    Write-JobEvent -Phase 'phase6.artifacts' -Status 'success' -Data @{ dir = $jobArtifactDir }
     $elapsed = (Get-Date) - $startTime
     Write-JobEvent -Phase 'job' -Status 'success' -Data @{ elapsedSec = [int]$elapsed.TotalSeconds }
     $phaseTimings.Add([PSCustomObject]@{ Phase = 'Phase 6 - Artifacts'; Sec = [int]((Get-Date) - $phaseStart).TotalSeconds })