Add src/helpers.ps1

src/helpers.ps1

@@ -0,0 +1,28 @@
+function Test-ComputerName {
+    [CmdletBinding()]
+    param(
+        [Parameter(Mandatory = $true)]
+        [string]$Name
+    )
+
+    if ([string]::IsNullOrWhiteSpace($Name)) { return $false }
+    if ($Name.Length -gt 15) { return $false }
+    if ($Name -notmatch '^[A-Za-z0-9-]+$') { return $false }
+    return $true
+}
+
+function Get-TaskHandlerName {
+    param([object]$Task)
+
+    foreach ($p in @('HandlerFn','Handler','Fn')) {
+        if ($Task.PSObject.Properties.Name -contains $p) {
+            $v = ([string]$Task.$p).Trim().TrimStart('/')
+            if (-not [string]::IsNullOrWhiteSpace($v)) { return $v }
+        }
+    }
+
+    $n = ([string]$Task.Name).Trim().TrimStart('/')
+    if (-not [string]::IsNullOrWhiteSpace($n)) { return "Invoke-$n" }
+
+    return $null
+}