Fixing pwsh to wsl docker setup

Update-WSLDockerProxy.ps1

@@ -3,13 +3,20 @@
 # Usage: . .\Update-WSLDockerProxy.ps1   (dot-source to import the function)
 #        Update-WSLDockerProxy            (then call it)
 # Or just run the script directly and it will execute automatically.
-
 function Update-WSLDockerProxy {
     [CmdletBinding()]
     param(
-        [int]$Port = 2375
+        [int]$Port = 2375,
+        [string]$LogPath = "$env:TEMP\Update-WSLDockerProxy.log"
     )
 
+    function Write-Log {
+        param([string]$Message)
+        $line = "$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')  $Message"
+        Write-Host $Message
+        Add-Content -Path $LogPath -Value $line
+    }
+
     # Self-elevate if not running as admin
     if (-not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
         Write-Host "Not running as admin, re-launching elevated..." -ForegroundColor Yellow
@@ -22,27 +29,38 @@ function Update-WSLDockerProxy {
         return
     }
 
-    # Get current WSL IP
-    $WSL_IP = (wsl hostname -I 2>$null).Split(" ")[0].Trim()
+    # --- Get current WSL IP ---
+    # wsl.exe emits UTF-16 output with embedded null bytes when its stdout isn't
+    # attached to a real console (hidden window, scheduled task, self-elevated
+    # relaunch, etc). That corrupts naive string parsing (e.g. results in "W"
+    # instead of an IP). Strip null chars before parsing, and validate the
+    # result looks like an actual IPv4 address before using it.
+    $rawOutput = (wsl.exe hostname -I 2>$null) -join ' '
+    $cleaned   = ($rawOutput -replace "`0", '').Trim()
+
+    $WSL_IP = $null
+    if ($cleaned) {
+        $candidates = $cleaned -split '\s+' | Where-Object { $_ -match '^\d{1,3}(\.\d{1,3}){3}$' }
+        $WSL_IP = $candidates | Select-Object -First 1
+    }
 
     if (-not $WSL_IP) {
-        Write-Error "Could not get WSL IP. Is WSL running?"
+        Write-Log "ERROR: Could not get a valid WSL IP. Raw output was: '$rawOutput'"
         return
     }
 
-    Write-Host "WSL IP: $WSL_IP" -ForegroundColor Cyan
+    Write-Log "WSL IP: $WSL_IP"
 
     # Remove existing rule if present
     $existing = netsh interface portproxy show v4tov4 | Select-String ":$Port"
     if ($existing) {
-        Write-Host "Removing existing portproxy rule on port $Port..." -ForegroundColor Gray
+        Write-Log "Removing existing portproxy rule on port $Port..."
         netsh interface portproxy delete v4tov4 listenport=$Port listenaddress=127.0.0.1 | Out-Null
     }
 
     # Add new rule
     netsh interface portproxy add v4tov4 listenport=$Port listenaddress=127.0.0.1 connectport=$Port connectaddress=$WSL_IP | Out-Null
-
-    Write-Host "Portproxy updated: 127.0.0.1:$Port -> ${WSL_IP}:$Port" -ForegroundColor Green
+    Write-Log "Portproxy updated: 127.0.0.1:$Port -> ${WSL_IP}:$Port"
 }
 
 # Run automatically if script is executed directly (not dot-sourced)