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/next-devtools/dev-overlay.browser.d.ts

@@ -0,0 +1,59 @@
+import { type OverlayState, type DispatcherEvent } from './dev-overlay/shared';
+import { type ActionDispatch } from 'react';
+import type { CacheIndicatorState } from './dev-overlay/cache-indicator';
+import type { HydrationErrorState } from './shared/hydration-error';
+import type { DebugInfo } from './shared/types';
+import type { DevIndicatorServerState } from '../server/dev/dev-indicator-server-state';
+import type { VersionInfo } from '../server/dev/parse-version-info';
+import type { SegmentNodeState } from './userspace/app/segment-explorer-node';
+import type { DevToolsConfig } from './dev-overlay/shared';
+import type { SegmentTrieData } from '../shared/lib/mcp-page-metadata-types';
+export interface Dispatcher {
+    onBuildOk(): void;
+    onBuildError(message: string): void;
+    onVersionInfo(versionInfo: VersionInfo): void;
+    onDebugInfo(debugInfo: DebugInfo): void;
+    onBeforeRefresh(): void;
+    onRefresh(): void;
+    onCacheIndicator(status: CacheIndicatorState): void;
+    onStaticIndicator(status: 'pending' | 'static' | 'dynamic' | 'disabled'): void;
+    onDevIndicator(devIndicator: DevIndicatorServerState): void;
+    onDevToolsConfig(config: DevToolsConfig): void;
+    onUnhandledError(reason: Error): void;
+    onUnhandledRejection(reason: Error): void;
+    openErrorOverlay(): void;
+    closeErrorOverlay(): void;
+    toggleErrorOverlay(): void;
+    buildingIndicatorHide(): void;
+    buildingIndicatorShow(): void;
+    renderingIndicatorHide(): void;
+    renderingIndicatorShow(): void;
+    segmentExplorerNodeAdd(nodeState: SegmentNodeState): void;
+    segmentExplorerNodeRemove(nodeState: SegmentNodeState): void;
+    segmentExplorerUpdateRouteState(page: string): void;
+}
+type OverlayStateWithRouter = OverlayState & {
+    routerType: 'pages' | 'app';
+};
+export declare function getSerializedOverlayState(): OverlayStateWithRouter | null;
+export declare function getSegmentTrieData(): SegmentTrieData | null;
+export declare const dispatcher: Dispatcher;
+export declare const DevOverlayContext: import("react").Context<{
+    shadowRoot: ShadowRoot;
+    state: OverlayState & {
+        routerType: "pages" | "app";
+    };
+    dispatch: ActionDispatch<[action: DispatcherEvent]>;
+    getSquashedHydrationErrorDetails: (error: Error) => HydrationErrorState | null;
+}>;
+export declare const useDevOverlayContext: () => {
+    shadowRoot: ShadowRoot;
+    state: OverlayState & {
+        routerType: "pages" | "app";
+    };
+    dispatch: ActionDispatch<[action: DispatcherEvent]>;
+    getSquashedHydrationErrorDetails: (error: Error) => HydrationErrorState | null;
+};
+export declare function renderAppDevOverlay(getOwnerStack: (error: Error) => string | null | undefined, isRecoverableError: (error: Error) => boolean, enableCacheIndicator: boolean): void;
+export declare function renderPagesDevOverlay(getOwnerStack: (error: Error) => string | null | undefined, getSquashedHydrationErrorDetails: (error: Error) => HydrationErrorState | null, isRecoverableError: (error: Error) => boolean): void;
+export {};