redesign site as "case file" theme

- new paper/ink palette with single red accent, replacing catppuccin
- self-hosted IBM Plex Serif (display) + Source Serif 4 (body), drop Outfit
- rebuilt homepage masthead, numbered post index, navbar with active states
- switch syntax highlighting + utterances to gruvbox, synced via postMessage
- remove terminal/404 easter egg chrome, clean up remaining inline styles
- fix stray syntax.css link causing a 404

package.json

@@ -1,24 +0,0 @@
-{
-  "name": "andwati.com",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
-  "scripts": {
-    "format": "prettier --write \"**/*.{html,css,scss,js,json,toml,ya?ml,md}\"",
-    "format:check": "prettier --check \"**/*.{html,css,scss,js,json,toml,ya?ml,md}\"",
-    "lint": "markdownlint \"content/**/*.md\"",
-    "test": "echo \"Error: no test specified\" && exit 1",
-    "prepare": "husky"
-  },
-  "keywords": [],
-  "author": "",
-  "license": "ISC",
-  "packageManager": "[email protected]",
-  "devDependencies": {
-    "husky": "^9.1.7",
-    "markdownlint-cli": "^0.49.0",
-    "prettier": "^3.9.4",
-    "prettier-plugin-toml": "^2.0.6",
-    "wrangler": "^4.107.0"
-  }
-}