Add static site QA checks

scripts/install-playwright-deps.mjs

@@ -0,0 +1,32 @@
+import { spawnSync } from 'node:child_process';
+import { existsSync } from 'node:fs';
+import { chromium } from 'playwright';
+
+const isLinux = process.platform === 'linux';
+
+if (!isLinux) {
+  process.exit(0);
+}
+
+const executablePath = chromium.executablePath();
+let needsInstall = !existsSync(executablePath);
+
+if (!needsInstall) {
+  const ldd = spawnSync('ldd', [executablePath], { encoding: 'utf8' });
+  const output = `${ldd.stdout ?? ''}${ldd.stderr ?? ''}`;
+  needsInstall = ldd.status !== 0 || output.includes('not found');
+}
+
+if (!needsInstall) {
+  process.exit(0);
+}
+
+const result = spawnSync('playwright', ['install', '--with-deps', 'chromium'], {
+  stdio: 'inherit',
+});
+
+if (result.error) {
+  throw result.error;
+}
+
+process.exit(result.status ?? 1);