feat(blog): add blog section with 10 SEO-optimized articles + GitHub Pages deploy

- 10 articles: 2 Announcements, 4 Guides (incl. pillar page + 2 commercial intent), 4 Use Cases
- Keyword-optimized titles, bilingual EN/ZH content, hash-based routing
- Internal linking network between all articles
- Product screenshots integrated into guides and use cases
- GitHub Actions workflow for deploying site/ to GitHub Pages

Made-with: Cursor

Author: ashley li

.github/workflows/deploy.yml

@@ -0,0 +1,30 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/configure-pages@v5
+      - uses: actions/upload-pages-artifact@v3
+        with:
+          path: site
+      - id: deployment
+        uses: actions/deploy-pages@v4