Revert "merge: apply windows standalone service installer and awHostname hardening"

This reverts commit e643576aa9, reversing
changes made to 669501f20a.

install-kit-awindows-20260427-211240/windows/migrate-awatch-rus-paths.ps1

@@ -1,4 +1,4 @@
-[CmdletBinding(SupportsShouldProcess = $true)]
+[CmdletBinding(SupportsShouldProcess = $true)]
 param(
     [string]$OldInstallRoot = 'C:\Program Files\ActivityWatch-Phase2',
     [string]$OldStateRoot = 'C:\ProgramData\ActivityWatch-Phase2',
@@ -154,36 +154,7 @@ if ($PSCmdlet.ShouldProcess($env:COMPUTERNAME, 'Миграция ActivityWatch W
             @{ Source = $NewStateRoot; Name = 'new-state' }
         )) {
         if (Test-Path -LiteralPath $item.Source) {
-            $backupDest = Join-Path $backupRoot $item.Name
-            New-ActivityWatchDirectory -Path $backupDest
-
-            $excludeDirs = @()
-            if ($item.Source -eq $NewStateRoot) {
-                # Avoid infinite recursion: backupRoot is inside NewStateRoot by default.
-                $excludeDirs += $backupRoot
-            }
-
-            $robocopyArgs = @(
-                $item.Source,
-                $backupDest,
-                '/E',
-                '/R:1',
-                '/W:1',
-                '/NFL',
-                '/NDL',
-                '/NJH',
-                '/NJS',
-                '/NP'
-            )
-            if ($excludeDirs.Count -gt 0) {
-                $robocopyArgs += '/XD'
-                $robocopyArgs += $excludeDirs
-            }
-
-            & robocopy @robocopyArgs | Out-Null
-            if ($LASTEXITCODE -ge 8) {
-                throw "Backup robocopy failed (exit=$LASTEXITCODE) for source '$($item.Source)' to '$backupDest'"
-            }
+            Copy-Item -LiteralPath $item.Source -Destination (Join-Path $backupRoot $item.Name) -Recurse -Force
         }
     }