- WhatsAppService: send text, template, image, document messages
- Bulk send to groups/status/custom selections
- Message log with status tracking (sent/delivered/read/failed)
- Three Livewire pages: Send Message, Send Template, Message Log
- Migration for whatsapp_messages table
- Added 'whatsapp' channel to NotificationChannel enum
- Wired into NotificationService for automated notifications
- Sidebar section "واتساب" with 3 items
- Config via WHATSAPP_PHONE_NUMBER_ID + WHATSAPP_ACCESS_TOKEN env vars
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>