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/dev/middleware-turbopack.d.ts

@@ -0,0 +1,17 @@
+import type { IncomingMessage, ServerResponse } from 'http';
+import { type OriginalStackFramesResponse, type StackFrame } from '../../next-devtools/server/shared';
+import type { Project } from '../../build/swc/types';
+export declare function getOverlayMiddleware({ project, projectPath, isSrcDir, }: {
+    project: Project;
+    projectPath: string;
+    isSrcDir: boolean;
+}): (req: IncomingMessage, res: ServerResponse, next: () => void) => Promise<void>;
+export declare function getSourceMapMiddleware(project: Project): (req: IncomingMessage, res: ServerResponse, next: () => void) => Promise<void>;
+export declare function getOriginalStackFrames({ project, projectPath, frames, isServer, isEdgeServer, isAppDirectory, }: {
+    project: Project;
+    projectPath: string;
+    frames: readonly StackFrame[];
+    isServer: boolean;
+    isEdgeServer: boolean;
+    isAppDirectory: boolean;
+}): Promise<OriginalStackFramesResponse>;