chore: run lint and prettifier

scripts/check-all.ps1

@@ -0,0 +1,15 @@
+# Запуск из корня репозитория: .\scripts\check-all.ps1
+$ErrorActionPreference = "Stop"
+$root = Split-Path -Parent $PSScriptRoot
+Set-Location $root
+
+Write-Host "Python: pip install -r requirements-dev.txt" -ForegroundColor Cyan
+python -m pip install -q -r requirements-dev.txt
+
+if (-not (Test-Path (Join-Path $root "node_modules"))) {
+  Write-Host "npm install (нет node_modules)" -ForegroundColor Cyan
+  npm install
+}
+
+Write-Host "npm run check" -ForegroundColor Cyan
+npm run check