refactor: redesign home page, remove old video pages, migrate to @tailwindcss/typography

- Replace root page with new (home) route featuring a project showcase (Domainstack, Sofa, Versioneer, Snoozle)
- Remove /birthday and /hillary video pages
- Replace custom hand-rolled .prose styles with @tailwindcss/typography via a .markdown utility class
- Remove heading-anchor component and .nvmrc

package.json

@@ -25,7 +25,7 @@
     "@base-ui/react": "^1.3.0",
     "@mdx-js/loader": "^3.1.1",
     "@mdx-js/react": "^3.1.1",
-    "@next/mdx": "16.2.2",
+    "@next/mdx": "16.2.3",
     "@octokit/graphql": "^9.0.3",
     "@octokit/graphql-schema": "^15.26.1",
     "@vercel/analytics": "^2.0.1",
@@ -41,14 +41,14 @@
     "feed": "^5.2.0",
     "html-entities": "^2.6.0",
     "lucide-react": "1.7.0",
-    "next": "16.2.2",
+    "next": "16.2.3",
     "next-themes": "^0.4.6",
     "pg": "^8.20.0",
-    "react": "19.2.4",
+    "react": "19.2.5",
     "react-activity-calendar": "^3.1.1",
     "react-compare-slider": "^4.0.0",
     "react-countup": "^6.5.3",
-    "react-dom": "19.2.4",
+    "react-dom": "19.2.5",
     "react-lite-youtube-embed": "~3.5.1",
     "react-markdown": "^10.1.0",
     "react-schemaorg": "^2.0.1",
@@ -61,6 +61,7 @@
     "rehype-slug": "^6.0.0",
     "rehype-stringify": "^10.0.1",
     "rehype-unwrap-images": "^1.0.0",
+    "rehype-wrapper": "^1.1.0",
     "remark-frontmatter": "^5.0.0",
     "remark-gfm": "^4.0.1",
     "remark-mdx": "^3.1.1",
@@ -74,19 +75,17 @@
     "shiki": "^4.0.2",
     "sonner": "^2.0.7",
     "tailwind-merge": "^3.5.0",
-    "unified": "^11.0.5",
-    "zod": "^4.3.6"
+    "unified": "^11.0.5"
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4.2.2",
-    "@types/hast": "^3.0.4",
+    "@tailwindcss/typography": "^0.5.19",
     "@types/mdx": "^2.0.13",
     "@types/node": "^25.5.2",
     "@types/pg": "^8.20.0",
     "@types/react": "19.2.14",
     "@types/react-dom": "19.2.3",
     "babel-plugin-react-compiler": "19.1.0-rc.3",
-    "cross-env": "^10.1.0",
     "dotenv": "^17.4.1",
     "drizzle-kit": "^0.31.10",
     "oxfmt": "^0.44.0",