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/shared/lib/hooks-client-context.shared-runtime.d.ts

@@ -0,0 +1,20 @@
+import type { Params } from '../../server/request/params';
+import { ReadonlyURLSearchParams } from '../../client/components/readonly-url-search-params';
+export declare const SearchParamsContext: import("react").Context<URLSearchParams | null>;
+export declare const PathnameContext: import("react").Context<string | null>;
+export declare const PathParamsContext: import("react").Context<Params | null>;
+export type InstrumentedPromise<T> = Promise<T> & {
+    status: 'fulfilled';
+    value: T;
+    displayName: string;
+};
+export type NavigationPromises = {
+    pathname: InstrumentedPromise<string>;
+    searchParams: InstrumentedPromise<ReadonlyURLSearchParams>;
+    params: InstrumentedPromise<Params>;
+    selectedLayoutSegmentPromises?: Map<string, InstrumentedPromise<string | null>>;
+    selectedLayoutSegmentsPromises?: Map<string, InstrumentedPromise<string[]>>;
+};
+export declare const NavigationPromisesContext: import("react").Context<NavigationPromises | null>;
+export declare function createDevToolsInstrumentedPromise<T>(displayName: string, value: T): InstrumentedPromise<T>;
+export { ReadonlyURLSearchParams };