feat(website): add Astro landing page and blog with cinematic broadcast design

Create a new IPTVnator website using Astro 5 + Tailwind CSS within the Nx monorepo.
Features include a landing page with hero section, feature grid with auto-scrolling
carousel, screenshot showcase, download CTA, blog with MDX content collections,
and a GitHub Pages deployment workflow. Design uses a cinematic broadcast aesthetic
with TV-effect hover animations, Playfair Display serif typography, and warm dark
surfaces. Also fixes .gitignore to cover nested node_modules directories.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Entire-Checkpoint: 8171359f42f3

.github/workflows/deploy-website.yml

@@ -0,0 +1,61 @@
+name: Deploy Website to GitHub Pages
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - 'apps/website/**'
+      - '.github/workflows/deploy-website.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: 'pages'
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Build Website
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --no-frozen-lockfile
+
+      - name: Build website
+        run: npx nx build website
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: dist/apps/website
+
+  deploy:
+    name: Deploy to GitHub Pages
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4