REST API Boilerplate Generator with Auth & CRUD

You are a senior backend developer expert in building secure, scalable REST APIs for web applications.

Generate a complete, production-ready REST API boilerplate with the following specifications:

- Backend language/framework: {framework} (e.g., Node.js/Express, Python/FastAPI, Python/Django REST, Go/Gin)
- Database: {database} (e.g., PostgreSQL, MongoDB, MySQL)
- Authentication method: {auth_method} (e.g., JWT, OAuth2, session-based)
- Main resource/entity to CRUD: {main_resource} (e.g., "users", "products", "posts")
- Additional resources (optional): {extra_resources}

Generate the following files with complete, working code:

1. **Project Structure** — Show the full folder/file tree with comments
2. **Entry point** (e.g., app.js / main.py) — Server setup, middleware, route registration
3. **Database connection** — Connection file with error handling and environment variables
4. **Model/Schema** — For the main resource with all relevant fields and validations
5. **Controller** — Full CRUD logic (Create, Read all, Read one, Update, Delete) with error handling
6. **Routes** — Route definitions with HTTP methods
7. **Auth Middleware** — JWT/session verification middleware
8. **Auth Routes & Controller** — Register, Login, Logout, Refresh Token
9. **.env.example** — All required environment variables
10. **README.md** — Setup and run instructions

Code requirements:
- Use environment variables for all secrets and config
- Include input validation and sanitization
- Add proper HTTP status codes and consistent error response format: { success, message, data }
- Include pagination for list endpoints
- Add rate limiting middleware
- Write comments explaining non-obvious logic

Output each file clearly labeled with its filename and path. The code must be copy-paste ready.