# Update Profile

Update the current user's profile information.

**Endpoint**: `PUT /api/auth/profile`
**Auth**: Required
**Content-Type**: `application/json`

## Request Body

| Field | Type | Required | Description |
|--------|------|-----------|-------------|
| first_name | string | No | User's first name |
| last_name | string | No | User's last name |

### Example Request

```json
{
  "first_name": "John",
  "last_name": "Smith"
}
```

## Response (200 OK)

```json
{
  "id": "uuid",
  "email": "user@example.com",
  "username": "john",
  "first_name": "John",
  "last_name": "Smith",
  "theme": "tokyo-night",
  "role": "user",
  "max_devices": 10,
  "created_at": "2026-01-31T10:00:00Z"
}
```

## Error Responses

| Code | Description |
|------|-------------|
| 400 | Invalid input data |
| 401 | Invalid or expired token |

## Try It Out

<!-- API Explorer will be inserted here in Phase 3 -->