Assigning tickets to vendors

🔍 Problem Statement

Currently, tickets can only be assigned to collaborators, and there is no option to assign a ticket to a vendor. This limits flexibility when managing issues that are handled by external vendors, making it harder to track responsibility and streamline communication.

💡 User Story

As a collaborator

I want to assign a ticket to a vendor from the customer profile (similar to assigning it to a collaborator),

So that I can track and manage issues that are handled by vendors more effectively.

🎯 Definition of Done (DoD)

A feature is done when:

1. Users can assign a vendor to a ticket from the customer profile/ tickets view

2. Vendor assignment is available alongside collaborator assignment in the customer profile/ tickets view

3. The selected vendor is saved and displayed on the ticket details (vendor, vendor id)

4. Users can update or remove the assigned vendor

5. Ticket management workflows remain consistent with existing assignment behavior