fix: track Windows local process trees safely

scripts/LocalDev.psm1

@@ -90,11 +90,27 @@ function Get-RecordedProcesses {
 
 function Test-RecordedProcess {
     param($Record)
-    $process = Get-Process -Id $Record.Pid -ErrorAction SilentlyContinue
+
+    try {
+        $recordedProcessId = [int]$Record.Pid
+        if ($recordedProcessId -le 0) { return $false }
+        $recordedStartTime = if ($Record.StartTimeUtc -is [datetime]) {
+            $Record.StartTimeUtc.ToUniversalTime()
+        }
+        else {
+            [datetime]::Parse(
+                [string]$Record.StartTimeUtc,
+                [System.Globalization.CultureInfo]::InvariantCulture,
+                [System.Globalization.DateTimeStyles]::RoundtripKind
+            ).ToUniversalTime()
+        }
+    }
+    catch { return $false }
+
+    $process = Get-Process -Id $recordedProcessId -ErrorAction SilentlyContinue
     if (-not $process) { return $false }
     try {
-        $actual = $process.StartTime.ToUniversalTime().ToString('o')
-        return $actual -eq $Record.StartTimeUtc
+        return $process.StartTime.ToUniversalTime().Ticks -eq $recordedStartTime.Ticks
     }
     catch { return $false }
 }