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/sharp/install/check.js

@@ -0,0 +1,14 @@
+/*!
+  Copyright 2013 Lovell Fuller and others.
+  SPDX-License-Identifier: Apache-2.0
+*/
+
+try {
+  const { useGlobalLibvips } = require('../lib/libvips');
+  if (useGlobalLibvips() || process.env.npm_config_build_from_source) {
+    process.exit(1);
+  }
+} catch (err) {
+  const summary = err.message.split(/\n/).slice(0, 1);
+  console.log(`sharp: skipping install check: ${summary}`);
+}