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/app-render/postponed-state.d.ts

@@ -0,0 +1,60 @@
+import type { OpaqueFallbackRouteParams } from '../../server/request/fallback-params';
+import type { Params } from '../request/params';
+import { type PrerenderResumeDataCache, type RenderResumeDataCache } from '../resume-data-cache/resume-data-cache';
+export declare enum DynamicState {
+    /**
+     * The dynamic access occurred during the RSC render phase.
+     */
+    DATA = 1,
+    /**
+     * The dynamic access occurred during the HTML shell render phase.
+     */
+    HTML = 2
+}
+/**
+ * The postponed state for dynamic data.
+ */
+export type DynamicDataPostponedState = {
+    /**
+     * The type of dynamic state.
+     */
+    readonly type: DynamicState.DATA;
+    /**
+     * The immutable resume data cache.
+     */
+    readonly renderResumeDataCache: RenderResumeDataCache;
+};
+/**
+ * The postponed state for dynamic HTML.
+ */
+export type DynamicHTMLPostponedState = {
+    /**
+     * The type of dynamic state.
+     */
+    readonly type: DynamicState.HTML;
+    /**
+     * The postponed data used by React.
+     */
+    readonly data: [
+        preludeState: DynamicHTMLPreludeState,
+        postponed: ReactPostponed
+    ];
+    /**
+     * The immutable resume data cache.
+     */
+    readonly renderResumeDataCache: RenderResumeDataCache;
+};
+export declare const enum DynamicHTMLPreludeState {
+    Empty = 0,
+    Full = 1
+}
+type ReactPostponed = NonNullable<import('react-dom/static').PrerenderResult['postponed']>;
+export type PostponedState = DynamicDataPostponedState | DynamicHTMLPostponedState;
+export declare function getDynamicHTMLPostponedState(postponed: ReactPostponed, preludeState: DynamicHTMLPreludeState, fallbackRouteParams: OpaqueFallbackRouteParams | null, resumeDataCache: PrerenderResumeDataCache | RenderResumeDataCache, isCacheComponentsEnabled: boolean): Promise<string>;
+export declare function getDynamicDataPostponedState(resumeDataCache: PrerenderResumeDataCache | RenderResumeDataCache, isCacheComponentsEnabled: boolean): Promise<string>;
+export declare function parsePostponedState(state: string, interpolatedParams: Params): PostponedState;
+export declare function getPostponedFromState(state: DynamicHTMLPostponedState): {
+    preludeState: DynamicHTMLPreludeState;
+    postponed: import("react-dom/static").PostponedState;
+};
+export {};