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/build/output/log.d.ts

@@ -0,0 +1,19 @@
+export declare const prefixes: {
+    readonly wait: string;
+    readonly error: string;
+    readonly warn: string;
+    readonly ready: "▲";
+    readonly info: string;
+    readonly event: string;
+    readonly trace: string;
+};
+export declare function bootstrap(message: string): void;
+export declare function wait(...message: any[]): void;
+export declare function error(...message: any[]): void;
+export declare function warn(...message: any[]): void;
+export declare function ready(...message: any[]): void;
+export declare function info(...message: any[]): void;
+export declare function event(...message: any[]): void;
+export declare function trace(...message: any[]): void;
+export declare function warnOnce(...message: any[]): void;
+export declare function errorOnce(...message: any[]): void;