[Feature]: As a technician, I want tickets to be assigned to a specific technician, so that each issue has a clear person responsible for resolving it.

### Problem to solve

As a technician, I need to know which tickets I am responsible for because unassigned tickets can lead to confusion, duplicate work, or delays in resolving a user's issue.

### Desired outcome

Each ticket can be assigned to a specific support technician, and the assigned technician is clearly visible on the ticket so both support staff and users know who is responsible for handling the issue.

### Proposed solution

_No response_

### Alternatives considered

_No response_

### Additional context

_No response_

### Before submitting

- [x] I searched existing issues and did not find an equivalent request.