Enable SPA prerendering in build pipeline

- Add puppeteer + mime-types to devDependencies
- Integrate prerender.mjs into build script (runs after vite build)
- Add Linux/Docker-safe Chrome flags (--disable-setuid-sandbox, --disable-dev-shm-usage, --disable-gpu)
- Fix static server to strip query strings from URLs

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "scripts": {
     "dev": "tinacms dev -c \"vite\"",
-    "build": "tinacms build && node scripts/sync-blog.mjs && node scripts/generate-sitemap.mjs && tsc -b && vite build",
+    "build": "tinacms build && node scripts/sync-blog.mjs && node scripts/generate-sitemap.mjs && tsc -b && vite build && node scripts/prerender.mjs",
     "lint": "eslint .",
     "preview": "vite preview",
     "sync-blog": "node scripts/sync-blog.mjs",
@@ -33,6 +33,8 @@
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.4.24",
     "globals": "^16.5.0",
+    "mime-types": "^2.1.35",
+    "puppeteer": "^24.0.0",
     "typescript": "~5.9.3",
     "typescript-eslint": "^8.48.0",
     "vite": "^7.3.1"

scripts/prerender.mjs

@@ -42,7 +42,8 @@ async function prerender() {
   // Simple static file server for dist/
   const PORT = 5199;
   const server = createServer((req, res) => {
-    let filePath = join(distDir, req.url === '/' ? '/index.html' : req.url);
+    const urlPath = req.url.split('?')[0];
+    let filePath = join(distDir, urlPath === '/' ? '/index.html' : urlPath);
     // For SPA routes, serve index.html
     if (!existsSync(filePath) || !extname(filePath)) {
       filePath = join(distDir, 'index.html');
@@ -55,7 +56,14 @@ async function prerender() {
   await new Promise(r => server.listen(PORT, r));
   console.log(`Static server running on http://localhost:${PORT}`);
 
-  const browser = await puppeteer.launch({ args: ['--no-sandbox'] });
+  const browser = await puppeteer.launch({
+    args: [
+      '--no-sandbox',
+      '--disable-setuid-sandbox',
+      '--disable-dev-shm-usage',
+      '--disable-gpu',
+    ],
+  });
 
   for (const route of routes) {
     const url = `http://localhost:${PORT}${route}`;