ReactFlow前端拖拽模型与参数配置功能MVP

frontend/start-dev.ps1

@@ -0,0 +1,13 @@
+$ErrorActionPreference = "Stop"
+
+$repoRoot = Split-Path -Parent $PSScriptRoot
+$nodeDir = Get-ChildItem -Path (Join-Path $repoRoot ".tools") -Directory -Filter "node-*-win-x64" |
+  Sort-Object Name -Descending |
+  Select-Object -First 1
+
+if (-not $nodeDir) {
+  throw "Node.js portable runtime was not found under .tools."
+}
+
+$env:Path = "$($nodeDir.FullName);$env:Path"
+& (Join-Path $nodeDir.FullName "npm.cmd") run dev