# Start Watch Mode

Start watch mode for a library to automatically detect and process new/modified files. Supports ebook, manga, and comic libraries with real-time file system monitoring.

**Endpoint**: `POST /api/scanner/watch/start`
**Auth**: Required (Admin only)
**Content-Type**: `application/json`

## Request Body

| Field      | Type          | Required | Description                                                |
| ---------- | ------------- | -------- | ---------------------------------------------------------- |
| library_id | string (UUID) | Yes      | Library UUID to watch (supports ebooks, manga, and comics) |

## Watch Mode Features

Watch mode automatically detects and processes:

- **New files** added to library folders
- **Modified files** that have been updated
- **Format-specific metadata extraction** for comics (.cbz, .cbr) and manga
- **ComicInfo.xml parsing** for comic archives
- **Image-based manga** processing for individual page files

### Example Request

```json
{
  "library_id": "550e8400-e29b-41d4-a716-446655440000"
}
```

## Response (200 OK)

```json
{
  "message": "Watch mode started successfully",
  "library_id": "uuid",
  "status": "watching"
}
```

## Error Responses

| Code | Description                                |
| ---- | ------------------------------------------ |
| 400  | Invalid request data                       |
| 401  | Invalid or expired token                   |
| 403  | User does not have admin privileges        |
| 404  | Library not found                          |
| 409  | Watch mode already active for this library |
