Refactor: Cleanup app removal, remove legacy app list generator and CustomAppsList file support (#662)

* remove support for uninstalling old sunset apps

* Add color legend on app removal screen

* Remove legacy app list generator and custom apps file support
Replaced by GUI config export/import, dynamic RemovalMethod, and
CLI app removal settings saved to LastUsedSettings.json.

* Verify app removal by checking actual installation state instead of trusting winget output

Scripts/AppRemoval/GetInstalledAppsViaWinget.ps1

@@ -1,6 +1,22 @@
+<#
+    .SYNOPSIS
+    Returns a list of installed apps from winget as structured objects.
 
-# Run winget list and return installed apps.
-# Use -NonBlocking to keep the UI responsive (GUI mode) via Invoke-NonBlocking.
+    .DESCRIPTION
+    Runs `winget list` and parses the output into PSCustomObject arrays.
+    Use -NonBlocking to keep the UI responsive in GUI mode; otherwise
+    runs synchronously with an optional timeout.
+
+    .PARAMETER TimeOut
+    Maximum seconds to wait for winget to complete. Default is 10.
+
+    .PARAMETER NonBlocking
+    When set, runs via Invoke-NonBlocking so the GUI thread stays responsive.
+
+    .OUTPUTS
+    PSCustomObject[] with Name and Id properties. Returns $null on
+    failure, or an empty array when winget succeeds but lists no apps.
+#>
 function GetInstalledAppsViaWinget {
     param (
         [int]$TimeOut = 10,
@@ -11,13 +27,76 @@ function GetInstalledAppsViaWinget {
 
     $fetchBlock = {
         param($timeOut)
-        $job = Start-Job { return winget list --accept-source-agreements --disable-interactivity }
+        $job = Start-Job {
+            $rawOutput = $null
+            try {
+                $originalEncoding = [Console]::OutputEncoding
+                [Console]::OutputEncoding = [System.Text.UTF8Encoding]::new()
+                try {
+                    $rawOutput = winget list --accept-source-agreements --disable-interactivity
+                }
+                finally {
+                    [Console]::OutputEncoding = $originalEncoding
+                }
+                return $rawOutput
+            }
+            catch {
+                return $null
+            }
+        }
+
         $done = $job | Wait-Job -Timeout $timeOut
         if ($done) {
             $result = Receive-Job -Job $job
             Remove-Job -Job $job -ErrorAction SilentlyContinue
-            return $result
+
+            if (-not $result) { return $null }
+
+            # winget list outputs:
+            #   [progress line] / [blank] / header / --- separator / data rows
+            $textOutput = $result -join "`n"
+            $lines = $textOutput -split "`r`n|`n"
+
+            # Find the separator line to know where data starts
+            $dataStart = -1
+            for ($i = 0; $i -lt $lines.Count; $i++) {
+                if ($lines[$i] -match '^-{3,}') {
+                    $dataStart = $i + 1
+                    break
+                }
+            }
+
+            if ($dataStart -lt 0 -or $dataStart -ge $lines.Count) { return @() }
+
+            $apps = [System.Collections.Generic.List[object]]::new()
+
+            for ($i = $dataStart; $i -lt $lines.Count; $i++) {
+                $line = $lines[$i]
+                if ($line.Trim() -eq '') { continue }
+
+                try {
+                    # Split on 2+ spaces; extract Name and Id columns.
+                    $fields = [regex]::Split($line.Trim(), '\s{2,}')
+                    if ($fields.Count -lt 2) { continue }
+
+                    $name = $fields[0].Trim()
+                    $id   = $fields[1].Trim()
+
+                    if (-not $id) { continue }
+
+                    $null = $apps.Add([PSCustomObject]@{
+                        Name = $name
+                        Id   = $id
+                    })
+                }
+                catch {
+                    # Skip lines that can't be parsed
+                }
+            }
+
+            return @($apps)
         }
+
         Remove-Job -Job $job -Force -ErrorAction SilentlyContinue
         return $null
     }