feat: add windows helper scripts

scripts/windows/VpnProxy.Windows.psm1

@@ -0,0 +1,154 @@
+Set-StrictMode -Version Latest
+$ErrorActionPreference = "Stop"
+
+$script:InstallRoot = $env:VPN_PROXY_WINDOWS_ROOT
+if ([string]::IsNullOrWhiteSpace($script:InstallRoot)) {
+  $script:InstallRoot = "C:\Tools\vpn-proxy-windows"
+}
+
+$script:ProxiFyreRoot = $env:PROXIFYRE_ROOT
+if ([string]::IsNullOrWhiteSpace($script:ProxiFyreRoot)) {
+  $script:ProxiFyreRoot = "C:\Tools\ProxiFyre"
+}
+
+function New-VpnProxyResult {
+  param(
+    [string]$Action,
+    [bool]$Success,
+    [object]$Result = $null,
+    [string]$Message = "",
+    [string]$ErrorMessage = ""
+  )
+
+  $value = [ordered]@{
+    success = $Success
+    action = $Action
+  }
+  if ($null -ne $Result) { $value.result = $Result }
+  if ($Message) { $value.message = $Message }
+  if ($ErrorMessage) { $value.error = $ErrorMessage }
+  return $value
+}
+
+function Get-VpnProxyStatus {
+  $task = Get-ScheduledTask -TaskName "SingBoxProxy" -ErrorAction SilentlyContinue
+  $singboxProcess = Get-Process -Name "sing-box" -ErrorAction SilentlyContinue
+  $proxifyre = Get-Service -Name "ProxiFyreService" -ErrorAction SilentlyContinue
+
+  return [ordered]@{
+    singbox = if ($singboxProcess) { "Running" } elseif ($task) { [string]$task.State } else { "NotInstalled" }
+    proxifyre = if ($proxifyre) { [string]$proxifyre.Status } else { "NotInstalled" }
+    installRoot = $script:InstallRoot
+    proxifyreRoot = $script:ProxiFyreRoot
+  }
+}
+
+function Write-ProxiFyreConfig {
+  param(
+    [Parameter(Mandatory=$true)][string]$ConfigPath,
+    [Parameter(Mandatory=$true)][object]$Config
+  )
+
+  $dir = Split-Path -Parent $ConfigPath
+  New-Item -ItemType Directory -Force -Path $dir | Out-Null
+  if (Test-Path $ConfigPath) {
+    Copy-Item $ConfigPath "$ConfigPath.bak" -Force
+  }
+  $Config | ConvertTo-Json -Depth 20 | Set-Content -Path $ConfigPath -Encoding UTF8
+}
+
+function Restart-ProxiFyre {
+  $exe = Join-Path $script:ProxiFyreRoot "ProxiFyre.exe"
+  if (-not (Test-Path $exe)) {
+    throw "ProxiFyre.exe not found at $exe"
+  }
+
+  & $exe stop 2>$null | Out-Null
+  & $exe install 2>$null | Out-Null
+  & $exe start 2>$null | Out-Null
+}
+
+function Invoke-ProxiFyreApply {
+  param([object]$Payload)
+
+  Write-ProxiFyreConfig -ConfigPath $Payload.configPath -Config $Payload.config
+  Restart-ProxiFyre
+  return New-VpnProxyResult -Action "proxifyre.apply" -Success $true -Message "ProxiFyre config applied and service restarted"
+}
+
+function Invoke-ServiceControl {
+  param([object]$Payload)
+
+  $service = [string]$Payload.service
+  $action = [string]$Payload.action
+
+  if ($service -eq "proxifyre") {
+    if ($action -eq "restart") { Restart-ProxiFyre }
+    elseif ($action -eq "start") { Start-Service -Name "ProxiFyreService" }
+    elseif ($action -eq "stop") { Stop-Service -Name "ProxiFyreService" -Force }
+    else { throw "Unknown ProxiFyre action: $action" }
+  } elseif ($service -eq "sing-box") {
+    if ($action -eq "restart") {
+      Stop-ScheduledTask -TaskName "SingBoxProxy" -ErrorAction SilentlyContinue
+      Start-ScheduledTask -TaskName "SingBoxProxy"
+    } elseif ($action -eq "start") {
+      Start-ScheduledTask -TaskName "SingBoxProxy"
+    } elseif ($action -eq "stop") {
+      Stop-ScheduledTask -TaskName "SingBoxProxy"
+    } else {
+      throw "Unknown sing-box action: $action"
+    }
+  } elseif ($service -eq "ui") {
+    return New-VpnProxyResult -Action "service.control" -Success $true -Message "UI is controlled by manage.ps1 -OpenUi"
+  } else {
+    throw "Unknown service: $service"
+  }
+
+  return New-VpnProxyResult -Action "service.control" -Success $true -Message "$service $action complete"
+}
+
+function Get-VpnProxyLogs {
+  $paths = @(
+    (Join-Path $script:InstallRoot "runtime\sing-box\singbox.log"),
+    (Join-Path $script:ProxiFyreRoot "ProxiFyre.log")
+  )
+  $logs = @()
+
+  foreach ($path in $paths) {
+    if (Test-Path $path) {
+      $logs += [ordered]@{
+        path = $path
+        lines = @(Get-Content $path -Tail 120 -ErrorAction SilentlyContinue)
+      }
+    }
+  }
+
+  return $logs
+}
+
+function Invoke-VpnProxyAction {
+  param(
+    [Parameter(Mandatory=$true)][string]$Action,
+    [object]$Payload = @{}
+  )
+
+  switch ($Action) {
+    "status.get" {
+      return New-VpnProxyResult -Action $Action -Success $true -Result (Get-VpnProxyStatus)
+    }
+    "proxifyre.apply" {
+      return Invoke-ProxiFyreApply -Payload $Payload
+    }
+    "service.control" {
+      return Invoke-ServiceControl -Payload $Payload
+    }
+    "logs.get" {
+      return New-VpnProxyResult -Action $Action -Success $true -Result (Get-VpnProxyLogs)
+    }
+    default {
+      throw "Unknown action: $Action"
+    }
+  }
+}
+
+Export-ModuleMember -Function Invoke-VpnProxyAction, Get-VpnProxyStatus