feat: prepare sellable source delivery edition

scripts/windows/stop-installed.ps1

@@ -0,0 +1,50 @@
+$ErrorActionPreference = 'Stop'
+
+$runtimeDir = Join-Path (Join-Path $env:LOCALAPPDATA 'SSHManager') 'runtime'
+$pidFile = Join-Path $runtimeDir 'app.pid'
+
+if (-not (Test-Path $pidFile)) {
+  Write-Output 'SSH Manager 当前未运行。'
+  exit 0
+}
+
+$rawPid = Get-Content -Path $pidFile -Raw
+$pidInfo = $null
+
+try {
+  $pidInfo = $rawPid | ConvertFrom-Json
+} catch {
+  $legacyPid = 0
+  if ([int]::TryParse($rawPid, [ref]$legacyPid)) {
+    $pidInfo = @{
+      pid = $legacyPid
+      startedAt = 0
+    }
+  }
+}
+
+if (-not $pidInfo) {
+  Remove-Item -Path $pidFile -Force -ErrorAction SilentlyContinue
+  Write-Output '已清理无效 PID 文件。'
+  exit 0
+}
+
+$process = Get-Process -Id ([int]$pidInfo.pid) -ErrorAction SilentlyContinue
+if (-not $process) {
+  Remove-Item -Path $pidFile -Force -ErrorAction SilentlyContinue
+  Write-Output 'SSH Manager 当前未运行。'
+  exit 0
+}
+
+if ($pidInfo.startedAt -and $process.StartTime) {
+  $processStartedAt = ([DateTimeOffset]$process.StartTime).ToUnixTimeMilliseconds()
+  if ($processStartedAt -ne [int64]$pidInfo.startedAt) {
+    Remove-Item -Path $pidFile -Force -ErrorAction SilentlyContinue
+    Write-Output '已清理过期 PID 文件，未停止任何进程。'
+    exit 0
+  }
+}
+
+Stop-Process -Id ([int]$pidInfo.pid) -Force
+Remove-Item -Path $pidFile -Force -ErrorAction SilentlyContinue
+Write-Output 'SSH Manager 已停止。'