Keep Windows training agent alive

tools/install_windows_training_agent.ps1

@@ -3,7 +3,8 @@ param(
     [string]$TaskName = "TradeBot Windows Training Agent",
     [string]$ApiBaseUrl = "https://tb.kusoft.xyz",
     [string]$ApiAuth = "",
-    [int]$PollSeconds = 60,
+    [int]$PollSeconds = 10,
+    [int]$WatchdogMinutes = 5,
     [string]$RepoRoot = "",
     [switch]$StartNow,
     [switch]$KeepLegacyRetrainer
@@ -59,6 +60,7 @@ if (-not $KeepLegacyRetrainer) {
 }
 
 $python = Resolve-Python
+$currentUser = [System.Security.Principal.WindowsIdentity]::GetCurrent().Name
 $arguments = @(
     "-u",
     "`"$Agent`"",
@@ -68,9 +70,17 @@ $arguments = @(
 ) -join " "
 
 $action = New-ScheduledTaskAction -Execute $python -Argument $arguments -WorkingDirectory $RepoRoot
-$trigger = New-ScheduledTaskTrigger -AtLogOn -User ([System.Security.Principal.WindowsIdentity]::GetCurrent().Name)
+$trigger = @(
+    New-ScheduledTaskTrigger -AtLogOn -User $currentUser
+    New-ScheduledTaskTrigger -AtStartup
+    New-ScheduledTaskTrigger `
+        -Once `
+        -At (Get-Date).AddMinutes(1) `
+        -RepetitionInterval (New-TimeSpan -Minutes $WatchdogMinutes) `
+        -RepetitionDuration (New-TimeSpan -Days 3650)
+)
 $principal = New-ScheduledTaskPrincipal `
-    -UserId ([System.Security.Principal.WindowsIdentity]::GetCurrent().Name) `
+    -UserId $currentUser `
     -LogonType Interactive `
     -RunLevel Limited
 $settings = New-ScheduledTaskSettingsSet `
@@ -78,6 +88,8 @@ $settings = New-ScheduledTaskSettingsSet `
     -MultipleInstances IgnoreNew `
     -AllowStartIfOnBatteries `
     -DontStopIfGoingOnBatteries `
+    -RestartCount 999 `
+    -RestartInterval (New-TimeSpan -Minutes 1) `
     -ExecutionTimeLimit (New-TimeSpan -Days 30)
 
 Register-ScheduledTask `
@@ -93,6 +105,6 @@ if ($StartNow) {
     Start-ScheduledTask -TaskName $TaskName
 }
 
-Write-Host "Registered scheduled task '$TaskName' for Windows logon."
+Write-Host "Registered scheduled task '$TaskName' for Windows startup, logon, and watchdog restarts."
 Write-Host "Agent API: $ApiBaseUrl"
 Write-Host "Agent script: $Agent"