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/lib/parse-stack.d.ts

@@ -0,0 +1,10 @@
+export interface StackFrame {
+    file: string | null;
+    methodName: string;
+    arguments: string[];
+    /** 1-based */
+    line1: number | null;
+    /** 1-based */
+    column1: number | null;
+}
+export declare function parseStack(stack: string, distDir?: string | undefined): StackFrame[];