Switch backend startup to interactive session

uninstall_backend_service.ps1

@@ -1,36 +1,45 @@
 [CmdletBinding(SupportsShouldProcess = $true)]
 param(
+    [switch]$AllUsers,
     [string]$ServiceName = "ScreenJobBackend"
 )
 
 Set-StrictMode -Version Latest
 $ErrorActionPreference = "Stop"
 
-function Test-IsAdministrator {
-    $identity = [Security.Principal.WindowsIdentity]::GetCurrent()
-    $principal = New-Object Security.Principal.WindowsPrincipal($identity)
-    return $principal.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
+$scriptDir = Split-Path -Parent $PSCommandPath
+$shortcutName = "ScreenJob Backend.lnk"
+$startupFolder = if ($AllUsers) {
+    [Environment]::GetFolderPath("CommonStartup")
+} else {
+    [Environment]::GetFolderPath("Startup")
 }
 
-if (-not (Test-IsAdministrator)) {
-    throw "Run this script from an elevated PowerShell session (Run as Administrator)."
-}
+$shortcutPath = Join-Path $startupFolder $shortcutName
 
 $service = Get-Service -Name $ServiceName -ErrorAction SilentlyContinue
-if ($null -eq $service) {
-    Write-Host "Service '$ServiceName' is not installed."
-    exit 0
-}
+if ($null -ne $service) {
+    if ($PSCmdlet.ShouldProcess($ServiceName, "Remove legacy Windows service")) {
+        if ($service.Status -ne "Stopped") {
+            Stop-Service -Name $ServiceName -Force -ErrorAction Stop
+        }
 
-if ($PSCmdlet.ShouldProcess($ServiceName, "Uninstall service")) {
-    if ($service.Status -ne "Stopped") {
-        Stop-Service -Name $ServiceName -Force -ErrorAction Stop
-    }
+        & sc.exe delete $ServiceName | Out-Null
+        if ($LASTEXITCODE -ne 0) {
+            throw "Failed to delete service '$ServiceName' (sc.exe exit code $LASTEXITCODE)."
+        }
 
-    & sc.exe delete $ServiceName | Out-Null
-    if ($LASTEXITCODE -ne 0) {
-        throw "Failed to delete service '$ServiceName' (sc.exe exit code $LASTEXITCODE)."
+        Write-Host "Removed legacy Windows service: $ServiceName"
     }
 }
 
-Write-Host "Service '$ServiceName' uninstalled successfully." -ForegroundColor Green
+if (Test-Path -LiteralPath $shortcutPath) {
+    if ($PSCmdlet.ShouldProcess($shortcutPath, "Remove backend startup shortcut")) {
+        Remove-Item -LiteralPath $shortcutPath -Force
+        Write-Host "Removed backend startup shortcut: $shortcutPath"
+    }
+} else {
+    Write-Host "No backend startup shortcut found at: $shortcutPath"
+}
+
+Write-Host "Backend launcher uninstalled successfully." -ForegroundColor Green