feat: add seat firmware workbench and OTA delivery

tools/start_n7web_background.ps1

@@ -0,0 +1,30 @@
+$ErrorActionPreference = "Stop"
+
+$repositoryRoot = Split-Path -Parent $PSScriptRoot
+$venvPython = Join-Path $repositoryRoot ".venv\Scripts\python.exe"
+$logRoot = Join-Path $repositoryRoot "artifacts\logs"
+$logPath = Join-Path $logRoot "n7web-autostart.log"
+
+if (-not (Test-Path -LiteralPath $venvPython -PathType Leaf)) {
+    throw "N7Web Python executable not found: $venvPython"
+}
+
+New-Item -ItemType Directory -Path $logRoot -Force | Out-Null
+$python = (& $venvPython -c "import sys; print(sys._base_executable)").Trim()
+if ($LASTEXITCODE -ne 0 -or -not (Test-Path -LiteralPath $python -PathType Leaf)) {
+    throw "N7Web base Python executable could not be resolved."
+}
+$env:PYTHONPATH = @(
+    (Join-Path $repositoryRoot "src")
+    (Join-Path $repositoryRoot "domains\seat\src")
+) -join [System.IO.Path]::PathSeparator
+
+while ($true) {
+    & $python -m cognitive_agent.firmware_ota_server --host 127.0.0.1 --port 8012 *>> $logPath
+    $exitCode = $LASTEXITCODE
+    $timestamp = Get-Date -Format "yyyy-MM-ddTHH:mm:ssK"
+    Add-Content -LiteralPath $logPath -Value (
+        "[$timestamp] OTA service exited with code $exitCode; restarting in 2 seconds."
+    )
+    Start-Sleep -Seconds 2
+}