Rebuild site in Tailwind to match adammaj.com layout with andwati content

- Port adammaj.com layout, sidebar and 3D bookshelf from Chakra to Tailwind v4,
  matched to measured pixel values
- Pages: About, Writing, Reading (bookshelf), Portfolio; content exported to
  markdown with YAML frontmatter, KaTeX math, callouts and YouTube embeds
- Shiki (github-light) code highlighting via rehype-pretty-code
- SEO: per-page metadata and canonicals, JSON-LD, generated OG images,
  sitemap, robots, RSS/JSON feeds, llms.txt
- Umami analytics via PUBLIC_UMAMI_SCRIPT_URL / PUBLIC_UMAMI_WEBSITE_ID
- Prettier + cspell for content, husky/lint-staged pre-commit hook
- Multi-stage Dockerfile (Node 24, pnpm, standalone output) for Dokploy
- Remove unused Chakra, emotion, framer-motion, posthog, next-seo and MDX deps

cspell.json

@@ -0,0 +1,17 @@
+{
+  "version": "0.2",
+  "language": "en",
+  "files": ["content/**/*.md"],
+  "dictionaries": ["project-words"],
+  "dictionaryDefinitions": [
+    { "name": "project-words", "path": "./.cspell/words.txt", "addWords": true }
+  ],
+  "ignoreRegExpList": [
+    "/^\\s*```[\\s\\S]*?^\\s*```/gm",
+    "/`[^`\\n]+`/g",
+    "/\\$\\$[\\s\\S]*?\\$\\$/g",
+    "/\\$[^$\\n]+\\$/g",
+    "/\\b[0-9a-f]{16,}\\b/gi",
+    "/\\w+\\{[^}\\n]*\\}/g"
+  ]
+}