feat: add Windows real RTC voice device simulator

deploy/local-rtc/start.ps1

@@ -0,0 +1,57 @@
+[CmdletBinding()]
+param([switch]$NoBuild)
+
+$ErrorActionPreference = "Stop"
+$scriptDirectory = Split-Path -Parent $MyInvocation.MyCommand.Path
+$projectRoot = Resolve-Path (Join-Path $scriptDirectory "..\..")
+$runtimeDirectory = Join-Path $scriptDirectory "runtime"
+$environmentFile = Join-Path $runtimeDirectory "local-rtc.env"
+$requiredFiles = @(
+    "rtc-app-key",
+    "volc-access-key-id",
+    "volc-secret-access-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"
+    }
+}
+
+Push-Location $projectRoot
+try {
+    $arguments = @(
+        "compose",
+        "-f", "compose.yaml",
+        "-f", "deploy/local-rtc/compose.override.yaml",
+        "--env-file", $environmentFile,
+        "up", "-d"
+    )
+    if (-not $NoBuild) { $arguments += "--build" }
+    $arguments += @(
+        "postgres", "redis", "minio", "keycloak", "migrate", "seed",
+        "callbacks", "mock-alert-receiver", "mock-provider", "api", "worker"
+    )
+    & docker @arguments
+    if ($LASTEXITCODE -ne 0) { throw "Docker Compose 启动失败" }
+
+    Write-Host "`n等待本地 API 就绪..." -ForegroundColor Cyan
+    $deadline = [DateTime]::UtcNow.AddMinutes(3)
+    do {
+        Start-Sleep -Seconds 2
+        try {
+            $health = Invoke-RestMethod -Uri "http://localhost:58080/health/ready" -TimeoutSec 3
+            if ($health) { break }
+        }
+        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
+}
+finally {
+    Pop-Location
+}