chore: add Windows build and service scripts

scripts/install-winsw-service.ps1

@@ -0,0 +1,59 @@
+param(
+  [string]$ServiceName = "LingmaIpcProxy",
+  [string]$BinaryPath = "",
+  [string]$Arguments = "--host 127.0.0.1 --port 8095 --session-mode auto",
+  [string]$WorkingDirectory = "",
+  [string]$WinSWExePath = "",
+  [string]$TemplatePath = ""
+)
+
+$ErrorActionPreference = "Stop"
+
+$repoRoot = Split-Path -Parent $PSScriptRoot
+
+if ([string]::IsNullOrWhiteSpace($BinaryPath)) {
+  $BinaryPath = Join-Path $repoRoot "dist\lingma-ipc-proxy.exe"
+}
+if ([string]::IsNullOrWhiteSpace($WorkingDirectory)) {
+  $WorkingDirectory = $repoRoot
+}
+if ([string]::IsNullOrWhiteSpace($WinSWExePath)) {
+  $WinSWExePath = Join-Path $repoRoot "dist\WinSW-x64.exe"
+}
+if ([string]::IsNullOrWhiteSpace($TemplatePath)) {
+  $TemplatePath = Join-Path $PSScriptRoot "lingma-ipc-proxy.xml.template"
+}
+
+if (!(Test-Path $BinaryPath)) {
+  throw "Binary not found: $BinaryPath"
+}
+if (!(Test-Path $WinSWExePath)) {
+  throw "WinSW executable not found: $WinSWExePath"
+}
+if (!(Test-Path $TemplatePath)) {
+  throw "WinSW template not found: $TemplatePath"
+}
+
+$serviceExePath = Join-Path $repoRoot "$ServiceName.exe"
+$serviceXmlPath = Join-Path $repoRoot "$ServiceName.xml"
+
+$xml = Get-Content -Raw $TemplatePath
+$xml = $xml.Replace("__SERVICE_ID__", $ServiceName)
+$xml = $xml.Replace("__SERVICE_NAME__", $ServiceName)
+$xml = $xml.Replace("__SERVICE_DESCRIPTION__", "Lingma IPC proxy service")
+$xml = $xml.Replace("__EXECUTABLE__", $BinaryPath)
+$xml = $xml.Replace("__ARGUMENTS__", $Arguments)
+$xml = $xml.Replace("__WORKDIR__", $WorkingDirectory)
+$xml = $xml.Replace("__LOGDIR__", (Join-Path $repoRoot "logs"))
+
+Copy-Item -Force $WinSWExePath $serviceExePath
+Set-Content -Path $serviceXmlPath -Value $xml
+
+Write-Host "Prepared WinSW service wrapper:"
+Write-Host "  $serviceExePath"
+Write-Host "  $serviceXmlPath"
+Write-Host ""
+Write-Host "Install with:"
+Write-Host "  & `"$serviceExePath`" install"
+Write-Host "Start with:"
+Write-Host "  & `"$serviceExePath`" start"