feat: add official EmDash marketing template

- Marketing landing page with hero, features, testimonials, FAQ, pricing
- EmDash CMS with pages collection and marketing blocks
- Full seed data with all content sections
- Dockerfile with entrypoint for database persistence
- Responsive design with CSS variables

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

README.md

@@ -0,0 +1,29 @@
+# Marketing Template
+
+A conversion-focused landing page with pricing and contact form. Built on Astro + EmDash CMS.
+
+## Features
+
+- Hero with CTAs
+- Feature grid
+- Pricing cards
+- FAQ and contact form
+- EmDash CMS for content management
+
+## Commands
+
+```bash
+npm run dev        # Start dev server
+npm run build      # Build for production
+npm run bootstrap  # Initialize database and seed content
+```
+
+## Pages
+
+- `/` - Homepage with hero, features, testimonials, FAQ
+- `/pricing` - Pricing page with plans comparison
+- `/contact` - Contact form
+
+## Admin
+
+Access the CMS at `/_emdash/admin` after running bootstrap.