lighthouse fixes

site/package.json

@@ -10,6 +10,8 @@
     "cache:clear": "tsx scripts/cache-clear.ts",
     "verify:blog": "npm run build && tsx scripts/verify-blog-build.ts",
     "verify:umami": "npm run build && tsx scripts/verify-umami-in-dist.ts",
+    "lighthouse:run": "tsx scripts/run-lighthouse.ts",
+    "verify:lighthouse": "tsx scripts/run-lighthouse.ts --assert-100",
     "typecheck": "astro check",
     "format": "prettier -w .",
     "format:check": "prettier -c .",
@@ -18,6 +20,7 @@
   },
   "dependencies": {
     "@astrojs/sitemap": "^3.7.0",
+    "@fontsource/manrope": "^5.2.8",
     "astro": "^5.17.1",
     "redis": "^4.7.1",
     "rss-parser": "^3.13.0",
@@ -26,7 +29,9 @@
   "devDependencies": {
     "@astrojs/check": "^0.9.6",
     "@types/node": "^25.2.2",
+    "chrome-launcher": "^1.2.1",
     "dotenv": "^17.2.4",
+    "lighthouse": "^13.0.2",
     "prettier": "^3.8.1",
     "prettier-plugin-astro": "^0.14.1",
     "tsx": "^4.21.0",