Restore scratch setup bootstrap and live frontdoor sweep

scripts/setup.ps1

@@ -273,6 +273,57 @@ function Initialize-EnvFile {
     }
 }
 
+function Get-ComposeEnvValue([string]$key) {
+    $envFile = Join-Path $ComposeDir '.env'
+    if (-not (Test-Path $envFile)) {
+        return $null
+    }
+
+    foreach ($line in Get-Content $envFile) {
+        if ($line -match "^\s*$key=(.+)$") {
+            return $matches[1].Trim()
+        }
+    }
+
+    return $null
+}
+
+function Get-FrontdoorNetworkName {
+    if (-not [string]::IsNullOrWhiteSpace($env:FRONTDOOR_NETWORK)) {
+        return $env:FRONTDOOR_NETWORK.Trim()
+    }
+
+    $configured = Get-ComposeEnvValue 'FRONTDOOR_NETWORK'
+    if (-not [string]::IsNullOrWhiteSpace($configured)) {
+        return $configured
+    }
+
+    return 'stellaops_frontdoor'
+}
+
+function Ensure-FrontdoorNetwork {
+    $networkName = Get-FrontdoorNetworkName
+    if ([string]::IsNullOrWhiteSpace($networkName)) {
+        Write-Fail 'Unable to resolve the frontdoor Docker network name.'
+        exit 1
+    }
+
+    $existingNetworks = @(docker network ls --format '{{.Name}}' 2>$null)
+    if ($existingNetworks -contains $networkName) {
+        Write-Ok "Frontdoor network available ($networkName)"
+        return
+    }
+
+    Write-Warn "Frontdoor network missing ($networkName); creating it now."
+    docker network create $networkName | Out-Null
+    if ($LASTEXITCODE -ne 0) {
+        Write-Fail "Failed to create frontdoor network ($networkName)."
+        exit 1
+    }
+
+    Write-Ok "Created frontdoor network ($networkName)"
+}
+
 # ─── 4. Start infrastructure ───────────────────────────────────────────────
 
 function Start-Infrastructure {
@@ -368,6 +419,7 @@ function Build-Images {
 
 function Start-Platform {
     Write-Step 'Starting full Stella Ops platform'
+    Ensure-FrontdoorNetwork
     Push-Location $ComposeDir
     try {
         docker compose -f docker-compose.stella-ops.yml up -d