fix(blog): restore TOC, list styling, and dynamic OG images

This commit reapplies fixes directly to main after reverting an accidental feature branch merge.

chore(release): bump version to 2.2.6

package.json

@@ -139,7 +139,7 @@
     "prepare": "husky",
     "preinstall": "npx only-allow pnpm"
   },
-  "version": "2.2.5",
+  "version": "2.2.6",
   "pnpm": {
     "onlyBuiltDependencies": [
       "@parcel/watcher",
@@ -161,4 +161,4 @@
   "peerDependencies": {
     "lucide-react": "^0.563.0"
   }
-}
+}