# Login User

Authenticate with email and password.

**Endpoint**: `POST /api/auth/login`
**Auth**: Not required
**Content-Type**: `application/json`

## Request Body

| Field | Type | Required | Description |
|--------|------|-----------|-------------|
| email | string | Yes | User's email address |
| password | string | Yes | User's password |

### Example Request

```json
{
  "email": "user@example.com",
  "password": "SecureP@ss123!"
}
```

## Response (200 OK)

```json
{
  "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
  "refresh_token": "d4f5g6h7...",
  "user": {
    "id": "uuid-here",
    "email": "user@example.com",
    "username": "john",
    "role": "user"
  }
}
```

## Error Responses

| Code | Description |
|------|-------------|
| 401 | Invalid email or password |
| 400 | Missing required fields |