Create example project: Blog API (Node.js/Docker)

[PAMulligan]

Description

Create a complete example project demonstrating Nerva's Node.js/Docker deployment path with a blog API. This covers a more realistic multi-resource API with relations, authentication, and pagination.

Why

The Cloudflare Workers example covers edge deployment; this example covers the traditional server deployment path. A blog API demonstrates features beyond basic CRUD: resource relations (users → posts → comments), authentication, pagination, and Docker orchestration.

Acceptance Criteria

• Create examples/blog-api-node/ directory
• Include a complete, working API with:
  • Resources: users, posts, comments (with relations)
  • JWT authentication (register, login, refresh)
  • Pagination (offset-based with meta)
  • Drizzle schema with PostgreSQL
  • Zod validation on all endpoints
  • Integration tests covering auth flows
  • Dockerfile + docker-compose.yml (API + PostgreSQL)
  • Database seed script
• Include a README.md with:
  • Prerequisites (Docker, pnpm)
  • docker compose up quick start
  • API documentation with example requests
  • Database schema diagram (text-based)
• Generated using Nerva's setup-project.sh --node as the starting point
• All tests pass
• Add link from the main README's Quick Start section