# Story 8.8: Timeline Update Notification

## Epic Reference
**Epic 8:** Email Notification System

## User Story
As a **client**,
I want **to be notified when my case timeline is updated**,
So that **I stay informed about my case progress**.

## Acceptance Criteria

### Trigger
- [ ] Sent on timeline update creation
- [ ] Queued for performance

### Content
- [ ] "Update on your case: [Case Name]"
- [ ] Case reference number
- [ ] Update content (full or summary)
- [ ] Date of update
- [ ] "View Timeline" button/link

### Language
- [ ] Email in client's preferred language

### Design
- [ ] Professional, informative tone

## Technical Notes

```php
class TimelineUpdateNotification extends Notification
{
    use Queueable;

    public function __construct(
        public TimelineUpdate $update
    ) {}

    public function via(object $notifiable): array
    {
        return ['mail'];
    }

    public function toMail(object $notifiable): MailMessage
    {
        $locale = $notifiable->preferred_language ?? 'ar';
        $timeline = $this->update->timeline;

        return (new MailMessage)
            ->subject($this->getSubject($locale, $timeline->case_name))
            ->markdown("emails.timeline.update.{$locale}", [
                'update' => $this->update,
                'timeline' => $timeline,
            ]);
    }
}
```

## Definition of Done
- [ ] Email sent on update
- [ ] Case info included
- [ ] Update content shown
- [ ] View link works
- [ ] Bilingual templates
- [ ] Tests pass

## Estimation
**Complexity:** Low | **Effort:** 2 hours