Upgrade to Next.js 16 with Turbopack and Contentlayer2

- Upgraded Next.js to v16, React to v19
- Migrated from contentlayer to contentlayer2
- Migrated to Turbopack by decoupling Contentlayer from webpack
- Updated all page components to handle async params (Next.js 15+ breaking change)
- Changed package.json to type: module and renamed config files to .cjs
- Updated README with current tech stack and article creation instructions
- Fixed tag encoding issue (removed double encoding)
- All security vulnerabilities resolved (npm audit: 0 vulnerabilities)

tsconfig.json

@@ -15,7 +15,7 @@
     "moduleResolution": "bundler",
     "resolveJsonModule": true,
     "isolatedModules": true,
-    "jsx": "preserve",
+    "jsx": "react-jsx",
     "incremental": true,
     "types": [
       "node"
@@ -40,9 +40,10 @@
     "**/*.ts",
     "**/*.tsx",
     ".contentlayer/generated",
-    ".next/types/**/*.ts"
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts"
   ],
   "exclude": [
     "node_modules"
   ]
-}
+}