test: initial end to end test with playwright

tests/e2e/spawn-db.js

@@ -0,0 +1,31 @@
+const { execSync, spawnSync } = require('child_process');
+const net = require('net');
+const path = require('path');
+
+const COMPOSE_FILE = path.join(__dirname, 'docker-compose.test.yml');
+const CMD = `docker compose -f ${COMPOSE_FILE}`;
+
+function waitForPort(host, port, timeoutMs = 30_000) {
+  const deadline = Date.now() + timeoutMs;
+  return new Promise((resolve, reject) => {
+    function attempt() {
+      const sock = net.connect(port, host);
+      sock.once('connect', () => { sock.destroy(); resolve(); });
+      sock.once('error', () => {
+        sock.destroy();
+        if (Date.now() >= deadline) return reject(new Error(`Timeout waiting for ${host}:${port}`));
+        setTimeout(attempt, 500);
+      });
+    }
+    attempt();
+  });
+}
+
+module.exports = async function globalSetup() {
+  console.log('[setup] Starting test postgres (database is empty) ...');
+  execSync(`${CMD} down`, { stdio: 'inherit' });
+  execSync(`${CMD} up -d`, { stdio: 'inherit' });
+  console.log('[setup] Waiting for postgres on port 5433...');
+  await waitForPort('127.0.0.1', 5433);
+  console.log('[setup] Postgres is ready.');
+};