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/web/next-url.d.ts

@@ -0,0 +1,57 @@
+import type { OutgoingHttpHeaders } from 'http';
+import type { DomainLocale, I18NConfig } from '../config-shared';
+import type { I18NProvider } from '../lib/i18n-provider';
+interface Options {
+    base?: string | URL;
+    headers?: OutgoingHttpHeaders;
+    forceLocale?: boolean;
+    nextConfig?: {
+        basePath?: string;
+        i18n?: I18NConfig | null;
+        trailingSlash?: boolean;
+    };
+    i18nProvider?: I18NProvider;
+}
+declare const Internal: unique symbol;
+export declare class NextURL {
+    private [Internal];
+    constructor(input: string | URL, base?: string | URL, opts?: Options);
+    constructor(input: string | URL, opts?: Options);
+    private analyze;
+    private formatPathname;
+    private formatSearch;
+    get buildId(): string | undefined;
+    set buildId(buildId: string | undefined);
+    get locale(): string;
+    set locale(locale: string);
+    get defaultLocale(): string | undefined;
+    get domainLocale(): DomainLocale | undefined;
+    get searchParams(): URLSearchParams;
+    get host(): string;
+    set host(value: string);
+    get hostname(): string;
+    set hostname(value: string);
+    get port(): string;
+    set port(value: string);
+    get protocol(): string;
+    set protocol(value: string);
+    get href(): string;
+    set href(url: string);
+    get origin(): string;
+    get pathname(): string;
+    set pathname(value: string);
+    get hash(): string;
+    set hash(value: string);
+    get search(): string;
+    set search(value: string);
+    get password(): string;
+    set password(value: string);
+    get username(): string;
+    set username(value: string);
+    get basePath(): string;
+    set basePath(value: string);
+    toString(): string;
+    toJSON(): string;
+    clone(): NextURL;
+}
+export {};