feat: каркас Express + pg, health check

server.js

@@ -0,0 +1,45 @@
+const express = require('express');
+const path = require('path');
+require('dotenv').config();
+const { checkConnection } = require('./src/db');
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+
+// Шаблоны
+app.set('view engine', 'ejs');
+app.set('views', path.join(__dirname, 'views'));
+
+// Статика
+app.use(express.static(path.join(__dirname, 'public')));
+
+// Парсинг форм
+app.use(express.urlencoded({ extended: true }));
+
+// Health check (для nubes_nodejs)
+app.get('/healthz', async (req, res) => {
+  try {
+    await checkConnection();
+    res.status(200).send('OK');
+  } catch (e) {
+    res.status(500).send('DB error');
+  }
+});
+
+// Главная страница
+app.get('/', (req, res) => {
+  res.render('index', { title: 'IP WhiteList' });
+});
+
+async function start() {
+  try {
+    const ok = await checkConnection();
+    console.log('DB connected:', ok);
+    app.listen(PORT, () => console.log(`Server on port ${PORT}`));
+  } catch (e) {
+    console.error('DB connection failed:', e.message);
+    process.exit(1);
+  }
+}
+
+start();