feat: turbostarter boilerplate

Production-ready Next.js boilerplate with:
- Runtime env validation (fail-fast on missing vars)
- Feature-gated config (S3, Stripe, email, OAuth)
- Docker + Coolify deployment pipeline
- PostgreSQL + pgvector, MinIO S3, Better Auth
- TypeScript strict mode (no ignoreBuildErrors)
- i18n (en/es), AI modules, billing, monitoring

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.context/turbostarter-framework-context/sections/web/marketing/pages.md

@@ -0,0 +1,42 @@
+---
+title: Marketing pages
+description: Discover which marketing pages are available out of the box and how to add a new one.
+url: /docs/web/marketing/pages
+---
+
+# Marketing pages
+
+TurboStarter comes with pre-defined marketing pages to help you get started with your SaaS application. These pages are built with Next.js and Tailwind CSS and are located in the `apps/web/src/app/[locale]/(marketing)` directory.
+
+TurboStarter comes with the following marketing pages:
+
+* **Home**: conversions-optimized [landing page](https://demo.turbostarter.dev) with [hero section](https://demo.turbostarter.dev#hero), [features](https://demo.turbostarter.dev#features), [pricing](https://demo.turbostarter.dev#pricing), [testimonials](https://demo.turbostarter.dev#testimonials), [FAQ](https://demo.turbostarter.dev#faq) and more
+* [Blog](/docs/web/cms/blog): to display your blog posts
+* **Pricing**: to display your pricing plans
+* **Contact**: to enable users to contact you with a contact form
+
+## Contact form
+
+To make the contact form work, you need to add the following environment variable:
+
+```dotenv
+CONTACT_EMAIL=
+```
+
+Set this variable to the email address where you want to receive contact form submissions. The sender's email address will match what you configured in your [mailing configuration](/docs/web/emails/configuration).
+
+## Adding a new marketing page
+
+To add a new marketing page, create a new directory in `apps/web/src/app/[locale]/(marketing)` with the desired route name.
+
+The page will automatically become available in your application at the corresponding URL path.
+
+For example, to create a page accessible at `/about`, create a directory named `about` and add a `page.tsx` file inside it. The complete path would be `apps/web/src/app/[locale]/(marketing)/about/page.tsx`.
+
+```tsx title="apps/web/src/app/[locale]/(marketing)/about/page.tsx"
+export default function AboutPage() {
+  return <div>About</div>;
+}
+```
+
+This page inherits the layout at `apps/web/src/app/[locale]/(marketing)/layout.tsx`. You can customize the layout by editing this file - but remember that it will affect all marketing pages.