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/env/README.md

@@ -0,0 +1,3 @@
+# `@next/env`
+
+Next.js' util for loading dotenv files in with the proper priorities

apps/public-web/node_modules/@next/env/dist/index.d.ts

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+export type Env = {
+    [key: string]: string | undefined;
+};
+export type LoadedEnvFiles = Array<{
+    path: string;
+    contents: string;
+    env: Env;
+}>;
+export declare let initialEnv: Env | undefined;
+export declare function updateInitialEnv(newEnv: Env): void;
+type Log = {
+    info: (...args: any[]) => void;
+    error: (...args: any[]) => void;
+};
+export declare function processEnv(loadedEnvFiles: LoadedEnvFiles, dir?: string, log?: Log, forceReload?: boolean, onReload?: (envFilePath: string) => void): Env[];
+export declare function resetEnv(): void;
+export declare function loadEnvConfig(dir: string, dev?: boolean, log?: Log, forceReload?: boolean, onReload?: (envFilePath: string) => void): {
+    combinedEnv: Env;
+    parsedEnv: Env | undefined;
+    loadedEnvFiles: LoadedEnvFiles;
+};
+export {};

apps/public-web/node_modules/@next/env/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "@next/env",
+  "version": "16.1.4",
+  "keywords": [
+    "react",
+    "next",
+    "next.js",
+    "dotenv"
+  ],
+  "description": "Next.js dotenv file loading",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/vercel/next.js",
+    "directory": "packages/next-env"
+  },
+  "author": "Next.js Team <support@vercel.com>",
+  "license": "MIT",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "dev": "ncc build ./index.ts -w -o dist/",
+    "prebuild:source": "node ../../scripts/rm.mjs dist",
+    "types": "tsc --declaration --emitDeclarationOnly --declarationDir dist",
+    "build:source": "ncc build ./index.ts -o ./dist/ --minify --no-cache --no-source-map-register",
+    "build": "pnpm build:source && pnpm types",
+    "prepublishOnly": "cd ../../ && turbo run build"
+  },
+  "devDependencies": {
+    "@vercel/ncc": "0.34.0",
+    "dotenv": "16.3.1",
+    "dotenv-expand": "10.0.0"
+  }
+}