feat: 初始提交——一键运行快捷轮盘工具（WPF + C#）

scripts/single-instance-test.ps1

@@ -0,0 +1,17 @@
+# 单实例验证：第二个实例应在 2 秒内自动退出
+$ErrorActionPreference = 'Stop'
+$exe = 'E:\002_Demo\One_click_run_wpf\src\OneClickRun\bin\Debug\net8.0-windows\OneClickRun.exe'
+Get-Process -Name 'OneClickRun' -ErrorAction SilentlyContinue |
+    Where-Object { $_.Path -eq $exe } |
+    ForEach-Object { Stop-Process -Id $_.Id -Force }
+
+$first = Start-Process -FilePath $exe -PassThru
+Start-Sleep -Seconds 3
+$second = Start-Process -FilePath $exe -PassThru
+Start-Sleep -Seconds 2
+$second.Refresh()
+Write-Output "FirstAlive: $(-not $first.HasExited)"
+Write-Output "SecondExited: $($second.HasExited)"
+if (-not $second.HasExited) { Stop-Process -Id $second.Id -Force }
+Stop-Process -Id $first.Id -Force
+Write-Output 'Done'