fix: normalize ExecutionTimeLimit PT0S and load TaskQuery locally (2.0.33-SAC)

Treat Get-ScheduledTask limit strings as unlimited, prefer ProgramData for TaskQuery import, and copy UNC modules to temp before dot-source.

Co-authored-by: Cursor <cursoragent@cursor.com>

tools/tests/Test-DeployTaskLimit.ps1

@@ -7,6 +7,17 @@ Invoke-RdpMonitorTestCase -Name 'Deploy functions load (RDP_DEPLOY_FUNCTIONS_ONL
     Assert-CommandExists -Name 'Test-RdpMonitorDeployMainTaskNeedsUnlimitedExecutionTime'
     Assert-CommandExists -Name 'Write-RdpMonitorDeployScheduledTaskVerification'
     Assert-CommandExists -Name 'Get-RdpMonitorDeployTaskExecutionTimeLimitLabelFromResolved'
+    Assert-CommandExists -Name 'Convert-RdpMonitorDeployTaskExecutionTimeLimitValue'
+}
+
+Invoke-RdpMonitorTestCase -Name 'Deploy ExecutionTimeLimit accepts PT0S string (Get-ScheduledTask shape)' -Script {
+    Assert-True -Condition (Test-RdpMonitorDeployTaskExecutionLimitUnlimitedValue -Limit 'PT0S') `
+        -Message 'PT0S string must be treated as unlimited'
+    $resolved = [pscustomobject]@{ Limit = 'PT0S'; Source = 'Get-ScheduledTask' }
+    $label = Get-RdpMonitorDeployTaskExecutionTimeLimitLabelFromResolved -Resolved $resolved
+    Assert-True -Condition ($label -eq 'PT0S') -Message "Expected PT0S label, got $label"
+    Assert-True -Condition (Test-RdpMonitorDeployTaskExecutionLimitUnlimitedValue -Limit $resolved.Limit) `
+        -Message 'Resolved PT0S string must pass unlimited check'
 }
 
 Invoke-RdpMonitorTestCase -Name 'Deploy pre-check task limit (no throw on early path)' -Script {