# 检查点 B — 文件触发
$root = Resolve-Path (Join-Path $PSScriptRoot "..\..")
$dir = Join-Path $root ".rpa\phase0"
New-Item -ItemType Directory -Force -Path $dir | Out-Null
$file = Join-Path $dir "trigger-checkpoint-b"
New-Item -ItemType File -Force -Path $file | Out-Null
Write-Host "[phase0] 已触发检查点 B: $file"