**feat(docs):** add Dockerfile and Nginx config for static site deployment

- Introduce `Dockerfile` for building and serving static site using Bun and Nginx
- Add `nginx.conf` for configuring static file caching and routing rules
- Expose port 80 for containerized deployment

docs/nginx.conf

@@ -0,0 +1,15 @@
+server {
+    listen 80;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ $uri.html /index.html;
+    }
+
+    # Cache static assets
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff2?)$ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+}