Enhance app removal verification and error reporting (#735)

Scripts/CLI/Show-CliDefaultModeOptions.ps1

@@ -39,7 +39,7 @@ function Show-CliDefaultModeOptions {
     }
     catch {
         Write-Error "Failed to load settings from DefaultSettings.json file: $_"
-        Wait-ForKeyPress
+        Wait-ForKeyPress -ExitCode 1
     }
 
     Save-Settings
@@ -51,4 +51,4 @@ function Show-CliDefaultModeOptions {
 
     Write-PendingChanges
     Write-CliHeader 'Default Mode'
-}
+}

Scripts/CLI/Show-CliLastUsedSettings.ps1

@@ -7,7 +7,7 @@ function Show-CliLastUsedSettings {
     }
     catch {
         Write-Error "Failed to load settings from LastUsedSettings.json file: $_"
-        Wait-ForKeyPress
+        Wait-ForKeyPress -ExitCode 1
     }
 
     if ($Silent) {
@@ -17,4 +17,4 @@ function Show-CliLastUsedSettings {
 
     Write-PendingChanges
     Write-CliHeader 'Custom Mode'
-}
+}

Scripts/CLI/Wait-ForKeyPress.ps1

@@ -1,4 +1,15 @@
+<#
+    .SYNOPSIS
+    Waits for user acknowledgement, then exits the script.
+
+    .PARAMETER ExitCode
+    Process exit code to return after acknowledgement. Defaults to 0.
+#>
 function Wait-ForKeyPress {
+    param(
+        [int]$ExitCode = 0
+    )
+
     # Suppress prompt if Silent parameter was passed
     if (-not $Silent) {
         Write-Output ""
@@ -7,5 +18,5 @@ function Wait-ForKeyPress {
     }
 
     Stop-Transcript
-    Exit
+    Exit $ExitCode
 }