fix: BUG-055,058,060,061,067,069,053 - QA low/info fixes

- BUG-055: Remove duplicate preconnect tags from homepage
- BUG-058: Add twitter:image meta tag to homepage
- BUG-060: Add og:title/description/url to sub-pages
- BUG-061: Add /status to sitemap.xml
- BUG-067: Add skip-to-content link on all pages
- BUG-069: Add legal footer to /docs page
- BUG-053: Minify app.js with terser

package.json

@@ -4,7 +4,7 @@
   "description": "Markdown/HTML to PDF API with built-in invoice templates",
   "main": "dist/index.js",
   "scripts": {
-    "build:pages": "node scripts/build-pages.js",
+    "build:pages": "node scripts/build-pages.js && npx terser public/app.js -o public/app.min.js --compress --mangle",
     "build": "npm run build:pages && tsc",
     "start": "node dist/index.js",
     "dev": "tsx src/index.ts",
@@ -30,6 +30,7 @@
     "@types/node": "^22.0.0",
     "@types/nodemailer": "^7.0.9",
     "@types/pg": "^8.11.0",
+    "terser": "^5.46.0",
     "tsx": "^4.19.0",
     "typescript": "^5.7.0",
     "vitest": "^3.0.0"