- Introduced a new optional `lid` field in the IsOnWhatsapp model to enhance data tracking.
- Updated migration script to add the `lid` column to the database.
- Modified OnWhatsAppDto to include the `lid` property for better integration with WhatsApp user data.
- Enhanced the WhatsApp Baileys service to handle `lid` numbers separately and improve user verification logic.
- Updated cache handling functions to support the new `lid` field for consistent data management.
