feat: support native Windows login browser

DouYinSparkFlow/scripts/start_login_desktop.ps1

@@ -0,0 +1,24 @@
+$ErrorActionPreference = "Stop"
+
+$appRoot = Split-Path -Parent $PSScriptRoot
+$repoRoot = Split-Path -Parent $appRoot
+Set-Location $appRoot
+
+if (-not $env:LOGIN_DESKTOP_MODE) { $env:LOGIN_DESKTOP_MODE = "native" }
+if (-not $env:LOGIN_DESKTOP_API_PORT) { $env:LOGIN_DESKTOP_API_PORT = "18090" }
+if (-not $env:LOGIN_PROFILE_DIR) {
+    $env:LOGIN_PROFILE_DIR = Join-Path $repoRoot "state\login-profile"
+}
+
+$python = Join-Path $repoRoot ".venv\Scripts\python.exe"
+if (-not (Test-Path $python)) {
+    $python = (Get-Command python -ErrorAction Stop).Source
+}
+
+New-Item -ItemType Directory -Force -Path $env:LOGIN_PROFILE_DIR | Out-Null
+
+Write-Host "Starting Windows native login browser..."
+Write-Host "Profile: $env:LOGIN_PROFILE_DIR"
+Write-Host "API: http://127.0.0.1:$env:LOGIN_DESKTOP_API_PORT"
+
+& $python .\login_desktop_server.py