fix(windows): defer missing tray task during trust reset

agents/windows/tests/Test-MinerOpsInstaller.ps1

@@ -37,6 +37,10 @@ Assert-SourceContains '\$existingTask\s*=\s*Get-MinerOpsScheduledTask' `
     "Existing task preservation guard is missing."
 Assert-SourceContains 'Preserving existing Scheduled Task' `
     "Existing task preservation is not explicit."
+Assert-SourceContains 'Test-MinerOpsInstallerShouldCreateMissingTask' `
+    "Missing-task trust-reset policy helper is absent."
+Assert-SourceContains 'Deferring missing per-user Scheduled Task' `
+    "Missing per-user task deferral is not explicit."
 Assert-SourceContains 'ExtraArguments\s*=\s*"-Limit 0 -TimeoutMs 8000"' `
     "Fresh enrichment task arguments are missing."
 Assert-SourceContains 'Stop-MinerOpsScheduledTaskForUpgrade' `
@@ -52,6 +56,98 @@ Assert-SourceContains 'could not restart restored MinerOpsAgent' `
 Assert-SourceContains 'Assert-MinerOpsInstallerTrustedAncestors' `
     "Installer does not validate ancestor namespace protection."
 
+$taskDefinitionsStart = $source.IndexOf('$definitions = @(')
+$taskLoopStart = $source.IndexOf(
+    'foreach ($definition in $definitions)', $taskDefinitionsStart
+)
+if ($taskDefinitionsStart -lt 0 -or $taskLoopStart -le $taskDefinitionsStart) {
+    throw "Scheduled Task definitions or reconciliation loop were not found."
+}
+$taskDefinitions = $source.Substring(
+    $taskDefinitionsStart, $taskLoopStart - $taskDefinitionsStart
+)
+foreach ($policy in @(
+    @{ Name = "MinerOpsAgent"; Expected = '\$true' },
+    @{ Name = "MinerOpsAgentTray"; Expected = '\$false' },
+    @{ Name = "MinerOpsApi3Enrichment"; Expected = '\$true' },
+    @{ Name = "MinerOpsPoolPoller"; Expected = '\$true' }
+)) {
+    $definition = [regex]::Match(
+        $taskDefinitions,
+        ('(?s)@\{{.*?Name\s*=\s*"{0}".*?\}}' -f
+            [regex]::Escape($policy.Name))
+    ).Value
+    if ([string]::IsNullOrWhiteSpace($definition) -or
+        $definition -notmatch (
+            'CreateWhenMissingDuringTrustReset\s*=\s*{0}' -f
+                $policy.Expected
+        )) {
+        throw "Scheduled Task $($policy.Name) has the wrong trust-reset creation policy."
+    }
+}
+
+$taskLoopEnd = $source.IndexOf(
+    'if ($mainTaskWasRunning', $taskLoopStart
+)
+if ($taskLoopEnd -le $taskLoopStart) {
+    throw "Scheduled Task reconciliation loop end was not found."
+}
+$taskLoop = $source.Substring($taskLoopStart, $taskLoopEnd - $taskLoopStart)
+$preserveIndex = $taskLoop.IndexOf('$null -ne $existingTask')
+$deferIndex = $taskLoop.IndexOf(
+    'Test-MinerOpsInstallerShouldCreateMissingTask'
+)
+$actionIndex = $taskLoop.IndexOf('New-ScheduledTaskAction')
+if (
+    $preserveIndex -lt 0 -or
+    $deferIndex -le $preserveIndex -or
+    $actionIndex -le $deferIndex
+) {
+    throw "Existing-task preservation and missing-task deferral are ordered unsafely."
+}
+if ($taskLoop -match '80070534|No mapping between account names') {
+    throw "Missing per-user task handling must be policy-based, not HRESULT-based."
+}
+
+$taskPolicyFunction = [regex]::Match(
+    $source,
+    '(?s)function Test-MinerOpsInstallerShouldCreateMissingTask \{.*?\n\}'
+).Value
+if ([string]::IsNullOrWhiteSpace($taskPolicyFunction)) {
+    throw "Missing-task trust-reset policy function source was not found."
+}
+Invoke-Expression $taskPolicyFunction
+$trayPolicy = [pscustomobject]@{
+    CreateWhenMissingDuringTrustReset = $false
+}
+$systemTaskPolicy = [pscustomobject]@{
+    CreateWhenMissingDuringTrustReset = $true
+}
+if (Test-MinerOpsInstallerShouldCreateMissingTask `
+    -Definition $trayPolicy -TrustResetMode $true) {
+    throw "Trust reset would create a missing per-user tray task."
+}
+if (-not (Test-MinerOpsInstallerShouldCreateMissingTask `
+    -Definition $trayPolicy -TrustResetMode $false)) {
+    throw "Normal interactive installation would not repair a missing tray task."
+}
+if (-not (Test-MinerOpsInstallerShouldCreateMissingTask `
+    -Definition $systemTaskPolicy -TrustResetMode $true)) {
+    throw "Trust reset would skip a missing explicit-SYSTEM task."
+}
+$missingPolicyRejected = $false
+try {
+    [void](Test-MinerOpsInstallerShouldCreateMissingTask `
+        -Definition ([pscustomobject]@{}) -TrustResetMode $true)
+}
+catch {
+    $missingPolicyRejected = $_.Exception.Message -match
+        'trust-reset creation policy is missing'
+}
+if (-not $missingPolicyRejected) {
+    throw "Trust reset accepted a task definition without explicit policy."
+}
+
 foreach ($functionName in @(
     "Assert-MinerOpsInstallerNoReparsePath",
     "Assert-MinerOpsInstallerTrustedAncestors"