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/client/route-params.d.ts

@@ -0,0 +1,13 @@
+import type { DynamicParamTypesShort } from '../shared/lib/app-router-types';
+import type { NormalizedPathname, NormalizedSearch } from './components/segment-cache/cache-key';
+import type { RSCResponse } from './components/router-reducer/fetch-server-response';
+import type { ParsedUrlQuery } from 'querystring';
+export type RouteParamValue = string | Array<string> | null;
+export declare function getRenderedSearch(response: RSCResponse<unknown> | Response): NormalizedSearch;
+export declare function getRenderedPathname(response: RSCResponse<unknown> | Response): NormalizedPathname;
+export declare function parseDynamicParamFromURLPart(paramType: DynamicParamTypesShort, pathnameParts: Array<string>, partIndex: number): RouteParamValue;
+export declare function doesStaticSegmentAppearInURL(segment: string): boolean;
+export declare function getCacheKeyForDynamicParam(paramValue: RouteParamValue, renderedSearch: NormalizedSearch): string;
+export declare function urlToUrlWithoutFlightMarker(url: URL): URL;
+export declare function getParamValueFromCacheKey(paramCacheKey: string, paramType: DynamicParamTypesShort): string | string[];
+export declare function urlSearchParamsToParsedUrlQuery(searchParams: URLSearchParams): ParsedUrlQuery;