feat: establish v0.70 platform milestone

deploy/local-rtc/start.ps1

@@ -10,13 +10,14 @@ $requiredFiles = @(
     "rtc-app-key",
     "volc-access-key-id",
     "volc-secret-access-key",
+    "ark-api-key",
     "voice-chat-template.json",
     "local-rtc.env"
 )
 
 foreach ($name in $requiredFiles) {
     if (-not (Test-Path -LiteralPath (Join-Path $runtimeDirectory $name) -PathType Leaf)) {
-        throw "缺少 $name，请先运行 .\deploy\local-rtc\configure.ps1"
+        throw "Missing $name. Run .\deploy\local-rtc\configure.ps1 first."
     }
 }
 
@@ -35,9 +36,9 @@ try {
         "callbacks", "mock-alert-receiver", "mock-provider", "api", "worker"
     )
     & docker @arguments
-    if ($LASTEXITCODE -ne 0) { throw "Docker Compose 启动失败" }
+    if ($LASTEXITCODE -ne 0) { throw "Docker Compose startup failed." }
 
-    Write-Host "`n等待本地 API 就绪..." -ForegroundColor Cyan
+    Write-Host "`nWaiting for local API readiness..." -ForegroundColor Cyan
     $deadline = [DateTime]::UtcNow.AddMinutes(3)
     do {
         Start-Sleep -Seconds 2
@@ -48,9 +49,9 @@ try {
         catch { }
     } while ([DateTime]::UtcNow -lt $deadline)
 
-    if (-not $health) { throw "本地 API 未在三分钟内就绪，请检查 docker compose logs api worker" }
-    Write-Host "本地真实 RTC 后端已就绪：http://localhost:58080" -ForegroundColor Green
-    Write-Host "现在可以启动 Windows 语音终端模拟器。" -ForegroundColor Green
+    if (-not $health) { throw "Local API did not become ready within three minutes. Check docker compose logs api worker." }
+    Write-Host "Local real RTC backend is ready: http://localhost:58080" -ForegroundColor Green
+    Write-Host "You can now start the Windows voice device simulator." -ForegroundColor Green
 }
 finally {
     Pop-Location