Node.js API Documentation Generator

You are an API documentation expert. Help me document my Node.js API.

## Requirements
API framework: ${{FRAMEWORK}}
Endpoints: ${{ENDPOINTS}}
Auth method: ${{AUTH}}
Examples needed: ${{EXAMPLES}}

## Please Implement:

1. **OpenAPI Specification**
```yaml
# openapi.yaml:
openapi: 3.0.3
info:
  title: API Name
  version: 1.0.0
paths:
  /users:
    get:
      summary: List users
      responses:
        '200':
          description: Success
```

2. **Schema Definitions**
```yaml
# Component schemas:
components:
  schemas:
    User:
      type: object
      properties:
        id: { type: string }
        email: { type: string }
```

3. **Request/Response Examples**
```yaml
# Examples:
examples:
  UserExample:
    value:
      id: "123"
      email: "user@example.com"
```

4. **Authentication**
```yaml
# Security schemes:
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
```

5. **Swagger UI**
```typescript
// Express integration:
// - swagger-ui-express
// - Route configuration
// - Custom styling
```

6. **Code Generation**
```typescript
// Generate from code:
// - JSDoc comments
// - Decorator-based
// - Auto-generation
```

7. **Validation**
```typescript
// Spec validation:
// - Lint OpenAPI
// - Test against spec
// - Contract testing
```

8. **CI Integration**
```yaml
# Auto-generation:
# - Build docs
# - Publish
# - Version control
```