PowerShell: keep $LASTEXITCODE across the prompt hook (#1342)

Co-authored-by: Ajeet D'Souza <98ajeet@gmail.com>

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Nushell: `z` now handles relative paths through symlinked directories.
 - POSIX: fix `z` failing to enter directories whose names start with `-`.
 - Build: fix compilation failing when the source directory is read-only.
+- PowerShell: the prompt hook no longer resets `$LASTEXITCODE`.
 
 ## [0.10.0] - 2026-07-04
 

templates/powershell.txt

@@ -93,7 +93,9 @@ if ($global:__zoxide_hooked -ne 1) {
         if ($null -ne $__zoxide_prompt_old) {
             & $__zoxide_prompt_old
         }
+        $exitCode = Microsoft.PowerShell.Utility\Get-Variable LASTEXITCODE -Scope Global -ErrorAction Ignore -ValueOnly
         $null = __zoxide_hook
+        $global:LASTEXITCODE = $exitCode
     }
 }
 {%- endif %}