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/node-environment-extensions/unhandled-rejection.d.ts

@@ -0,0 +1,21 @@
+/**
+ * Manages unhandled rejection listeners to intelligently filter rejections
+ * from aborted prerenders when cache components are enabled.
+ *
+ * THE PROBLEM:
+ * When we abort prerenders we expect to find numerous unhandled promise rejections due to
+ * things like awaiting Request data like `headers()`. The rejections are fine and should
+ * not be construed as problematic so we need to avoid the appearance of a problem by
+ * omitting them from the logged output.
+ *
+ * THE STRATEGY:
+ * 1. Install a filtering unhandled rejection handler
+ * 2. Intercept process event methods to capture new handlers in our internal queue
+ * 3. For each rejection, check if it comes from an aborted prerender context
+ * 4. If yes, suppress it. If no, delegate to all handlers in our queue
+ * 5. This provides precise filtering without time-based windows
+ *
+ * This ensures we suppress noisy prerender-related rejections while preserving
+ * normal error logging for genuine unhandled rejections.
+ */
+export {};