fix:优化服务

video_worker/scripts/run_ws_service.ps1

@@ -0,0 +1,20 @@
+$ErrorActionPreference = "Stop"
+$Root = Split-Path -Parent (Split-Path -Parent $MyInvocation.MyCommand.Path)
+Set-Location $Root
+
+if (!(Test-Path .venv)) { throw ".venv not found, run install script first" }
+if (!(Test-Path .env)) { throw ".env not found, copy from .env.example" }
+
+.\.venv\Scripts\Activate.ps1
+Get-Content .env | ForEach-Object {
+  if ($_ -match "^\s*#") { return }
+  if ($_ -match "^\s*$") { return }
+  $parts = $_ -split "=", 2
+  if ($parts.Length -eq 2) {
+    [System.Environment]::SetEnvironmentVariable($parts[0], $parts[1], "Process")
+  }
+}
+
+$hostValue = if ($env:WS_GATEWAY_HOST) { $env:WS_GATEWAY_HOST } else { "0.0.0.0" }
+$portValue = if ($env:WS_GATEWAY_PORT) { $env:WS_GATEWAY_PORT } else { "8010" }
+python -m uvicorn app.ws_service:app --host $hostValue --port $portValue