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/server/runtime-reacts.external.js

@@ -0,0 +1,46 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+0 && (module.exports = {
+    getClientReact: null,
+    getServerReact: null,
+    registerClientReact: null,
+    registerServerReact: null
+});
+function _export(target, all) {
+    for(var name in all)Object.defineProperty(target, name, {
+        enumerable: true,
+        get: all[name]
+    });
+}
+_export(exports, {
+    getClientReact: function() {
+        return getClientReact;
+    },
+    getServerReact: function() {
+        return getServerReact;
+    },
+    registerClientReact: function() {
+        return registerClientReact;
+    },
+    registerServerReact: function() {
+        return registerServerReact;
+    }
+});
+let ClientReact = null;
+function registerClientReact(react) {
+    ClientReact = react;
+}
+function getClientReact() {
+    return ClientReact;
+}
+let ServerReact = null;
+function registerServerReact(react) {
+    ServerReact = react;
+}
+function getServerReact() {
+    return ServerReact;
+}
+
+//# sourceMappingURL=runtime-reacts.external.js.map