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/client/app-build-id.js

@@ -0,0 +1,49 @@
+// This gets assigned as a side-effect during app initialization. Because it
+// represents the build used to create the JS bundle, it should never change
+// after being set, so we store it in a global variable.
+//
+// When performing RSC requests, if the incoming data has a different build ID,
+// we perform an MPA navigation/refresh to load the updated build and ensure
+// that the client and server in sync.
+// Starts as an empty string. In practice, because setAppBuildId is called
+// during initialization before hydration starts, this will always get
+// reassigned to the actual build ID before it's ever needed by a navigation.
+// If for some reasons it didn't, due to a bug or race condition, then on
+// navigation the build comparision would fail and trigger an MPA navigation.
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+0 && (module.exports = {
+    getAppBuildId: null,
+    setAppBuildId: null
+});
+function _export(target, all) {
+    for(var name in all)Object.defineProperty(target, name, {
+        enumerable: true,
+        get: all[name]
+    });
+}
+_export(exports, {
+    getAppBuildId: function() {
+        return getAppBuildId;
+    },
+    setAppBuildId: function() {
+        return setAppBuildId;
+    }
+});
+let globalBuildId = '';
+function setAppBuildId(buildId) {
+    globalBuildId = buildId;
+}
+function getAppBuildId() {
+    return globalBuildId;
+}
+
+if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
+  Object.defineProperty(exports.default, '__esModule', { value: true });
+  Object.assign(exports.default, exports);
+  module.exports = exports.default;
+}
+
+//# sourceMappingURL=app-build-id.js.map