Company Settings page returns 404: GET /api/v1/tenants/{id} not found

[hunkar-tech35]

When navigating to the Company Settings page, the frontend makes a GET request to:
http://localhost:8080/api/v1/tenants/{tenant-id}

This returns 404 Not Found.

Steps to reproduce:

1. Run the app locally with docker-compose
2. Log in and navigate to Settings > Company
3. Page shows "Request failed with status 404"

The endpoint appears to be missing from the backend.