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/@tailwindcss/postcss/README.md

@@ -0,0 +1,126 @@
+<p align="center">
+  <a href="https://tailwindcss.com" target="_blank">
+    <picture>
+      <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/tailwindlabs/tailwindcss/HEAD/.github/logo-dark.svg">
+      <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/tailwindlabs/tailwindcss/HEAD/.github/logo-light.svg">
+      <img alt="Tailwind CSS" src="https://raw.githubusercontent.com/tailwindlabs/tailwindcss/HEAD/.github/logo-light.svg" width="350" height="70" style="max-width: 100%;">
+    </picture>
+  </a>
+</p>
+
+<p align="center">
+  A utility-first CSS framework for rapidly building custom user interfaces.
+</p>
+
+<p align="center">
+    <a href="https://github.com/tailwindlabs/tailwindcss/actions"><img src="https://img.shields.io/github/actions/workflow/status/tailwindlabs/tailwindcss/ci.yml?branch=next" alt="Build Status"></a>
+    <a href="https://www.npmjs.com/package/tailwindcss"><img src="https://img.shields.io/npm/dt/tailwindcss.svg" alt="Total Downloads"></a>
+    <a href="https://github.com/tailwindcss/tailwindcss/releases"><img src="https://img.shields.io/npm/v/tailwindcss.svg" alt="Latest Release"></a>
+    <a href="https://github.com/tailwindcss/tailwindcss/blob/master/LICENSE"><img src="https://img.shields.io/npm/l/tailwindcss.svg" alt="License"></a>
+</p>
+
+---
+
+## Documentation
+
+For full documentation, visit [tailwindcss.com](https://tailwindcss.com).
+
+## Community
+
+For help, discussion about best practices, or feature ideas:
+
+[Discuss Tailwind CSS on GitHub](https://github.com/tailwindcss/tailwindcss/discussions)
+
+## Contributing
+
+If you're interested in contributing to Tailwind CSS, please read our [contributing docs](https://github.com/tailwindcss/tailwindcss/blob/next/.github/CONTRIBUTING.md) **before submitting a pull request**.
+
+---
+
+## `@tailwindcss/postcss` plugin API
+
+### Changing where the plugin searches for source files
+
+You can use the `base` option (defaults to the current working directory) to change the directory in which the plugin searches for source files:
+
+```js
+import tailwindcss from "@tailwindcss/postcss"
+
+export default {
+ plugins: [
+  tailwindcss({
+    base: path.resolve(__dirname, "./path")
+  })
+ ]
+}
+```
+
+### Enabling or disabling Lightning CSS
+
+By default, this plugin detects whether or not the CSS is being built for production by checking the `NODE_ENV` environment variable. When building for production Lightning CSS will be enabled otherwise it is disabled.
+
+If you want to always enable or disable Lightning CSS the `optimize` option may be used:
+
+```js
+import tailwindcss from '@tailwindcss/postcss'
+
+export default {
+  plugins: [
+    tailwindcss({
+      // Enable or disable Lightning CSS
+      optimize: false,
+    }),
+  ],
+}
+```
+
+It's also possible to keep Lightning CSS enabled but disable minification:
+
+```js
+import tailwindcss from '@tailwindcss/postcss'
+
+export default {
+  plugins: [
+    tailwindcss({
+      optimize: { minify: false },
+    }),
+  ],
+}
+```
+
+### Enabling or disabling `url(…)` rewriting
+
+Our PostCSS plugin can rewrite `url(…)`s for you since it also handles `@import` (no `postcss-import` is needed). This feature is enabled by default.
+
+In some situations the bundler or framework you're using may provide this feature itself. In this case you can set `transformAssetUrls` to `false` to disable this feature:
+
+```js
+import tailwindcss from '@tailwindcss/postcss'
+
+export default {
+  plugins: [
+    tailwindcss({
+      // Disable `url(…)` rewriting
+      transformAssetUrls: false,
+
+      // Enable `url(…)` rewriting (the default)
+      transformAssetUrls: true,
+    }),
+  ],
+}
+```
+
+You may also pass options to `optimize` to enable Lighting CSS but prevent minification:
+
+```js
+import tailwindcss from '@tailwindcss/postcss'
+
+export default {
+  plugins: [
+    tailwindcss({
+      // Enables Lightning CSS but disables minification
+      optimize: { minify: false },
+    }),
+  ],
+}
+```