feat(blog): add file-based blog with dynamic slugs, MDX content and layout shell

- Introduced blog routing using Next.js App Router
- Implemented dynamic [slug] pages for blog posts
- Added MDX-based content loading via lib/posts
- Integrated shared TopBar layout with navigation
- Established clear content, lib and component separation

apps/public-web/node_modules/next/dist/compiled/react/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "react-builtin",
+  "main": "index.js",
+  "exports": {
+    ".": {
+      "react-server": "./react.react-server.js",
+      "default": "./index.js"
+    },
+    "./package.json": "./package.json",
+    "./jsx-runtime": {
+      "react-server": "./jsx-runtime.react-server.js",
+      "default": "./jsx-runtime.js"
+    },
+    "./jsx-dev-runtime": {
+      "react-server": "./jsx-dev-runtime.react-server.js",
+      "default": "./jsx-dev-runtime.js"
+    },
+    "./compiler-runtime": {
+      "react-server": "./compiler-runtime.js",
+      "default": "./compiler-runtime.js"
+    }
+  }
+}