Aktualisiere die README.md mit Anweisungen zur Registrierung des Field Customizers und Command Sets; füge neue Parameter für Command Set IDs in Enable- und Disable-ExpiryIndicator.ps1 hinzu; erstelle Test-ExpiryIndicatorRegistration.ps1 zur Überprüfung der Registrierung.

scripts/Test-ExpiryIndicatorRegistration.ps1

@@ -0,0 +1,50 @@
+[CmdletBinding()]
+param(
+    [Parameter(Mandatory = $true)]
+    [string]$SiteUrl,
+
+    [Parameter(Mandatory = $true)]
+    [string]$ListTitle,
+
+    [Parameter(Mandatory = $true)]
+    [string]$ExpiryFieldInternalName
+)
+
+$isapiPath = Join-Path ([Environment]::GetFolderPath('CommonProgramFiles')) 'microsoft shared\Web Server Extensions\16\ISAPI'
+Add-Type -Path (Join-Path $isapiPath 'Microsoft.SharePoint.Client.Runtime.dll')
+Add-Type -Path (Join-Path $isapiPath 'Microsoft.SharePoint.Client.dll')
+
+$context = New-Object Microsoft.SharePoint.Client.ClientContext($SiteUrl)
+$context.Credentials = [System.Net.CredentialCache]::DefaultNetworkCredentials
+
+try {
+    $list = $context.Web.Lists.GetByTitle($ListTitle)
+    $field = $list.Fields.GetByInternalNameOrTitle($ExpiryFieldInternalName)
+    $customActions = $list.UserCustomActions
+    $context.Load($list)
+    $context.Load($field)
+    $context.Load($customActions)
+    $context.ExecuteQuery()
+
+    Write-Host "Liste: $($list.Title)"
+    Write-Host "Feld: $($field.InternalName)"
+    Write-Host "Field Customizer: $($field.ClientSideComponentId)"
+    Write-Host ''
+    Write-Host 'List User Custom Actions:'
+
+    $actions = @($customActions | Where-Object {
+        $_.Location -like 'ClientSideExtension.ListViewCommandSet*' -or
+        $_.Name -like 'ExpiryIndicator*'
+    })
+
+    if ($actions.Count -eq 0) {
+        Write-Warning 'Kein ExpiryIndicator Command Set an der Liste registriert.'
+    }
+    else {
+        $actions | Select-Object Name, Title, Location, ClientSideComponentId, ClientSideComponentProperties |
+            Format-List
+    }
+}
+finally {
+    $context.Dispose()
+}